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3970512144 = 2432592892
BaseRepresentation
bin1110110010101001…
…0011010100010000
3101020201012220201100
43230222103110100
531112422342034
61453553504400
7200251540104
oct35452232420
911221186640
103970512144
1117582835a5
12929872100
134b3798891
14299479904
1518389d099
hexeca93510

3970512144 has 135 divisors (see below), whose sum is σ = 11431881253. Its totient is φ = 1286452992.

The previous prime is 3970512109. The next prime is 3970512167. The reversal of 3970512144 is 4412150793.

The square root of 3970512144 is 63012.

It is a perfect power (a square), and thus also a powerful number.

3970512144 is a `hidden beast` number, since 39 + 70 + 512 + 1 + 44 = 666.

It can be written as a sum of positive squares in only one way, i.e., 762422544 + 3208089600 = 27612^2 + 56640^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3970512099 and 3970512108.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 44612452 + ... + 44612540.

Almost surely, 23970512144 is an apocalyptic number.

3970512144 is the 63012-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3970512144

3970512144 is an abundant number, since it is smaller than the sum of its proper divisors (7461369109).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3970512144 is an equidigital number, since it uses as much as digits as its factorization.

3970512144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The cubic root of 3970512144 is about 1583.4906726401.

Multiplying 3970512144 by its sum of digits (36), we get a square (142938437184 = 3780722).

3970512144 divided by its sum of digits (36) gives a square (110292004 = 105022).

The spelling of 3970512144 in words is "three billion, nine hundred seventy million, five hundred twelve thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 59 72 89 118 144 177 178 236 267 354 356 472 531 534 708 712 801 944 1062 1068 1416 1424 1602 2124 2136 2832 3204 3481 4248 4272 5251 6408 6962 7921 8496 10443 10502 12816 13924 15753 15842 20886 21004 23763 27848 31329 31506 31684 41772 42008 47259 47526 55696 62658 63012 63368 71289 83544 84016 94518 95052 125316 126024 126736 142578 167088 189036 190104 250632 252048 285156 309809 378072 380208 467339 501264 570312 619618 756144 929427 934678 1140624 1239236 1402017 1858854 1869356 2478472 2788281 2804034 3717708 3738712 4206051 4956944 5576562 5608068 7435416 7477424 8412102 11153124 11216136 14870832 16824204 22306248 22432272 27573001 33648408 44612496 55146002 67296816 82719003 110292004 165438006 220584008 248157009 330876012 441168016 496314018 661752024 992628036 1323504048 1985256072 3970512144