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145984032 = 2534173313
BaseRepresentation
bin10001011001110…
…00101000100000
3101011200202110000
420230320220200
5244332442112
622252540000
73421562265
oct1054705040
9334622400
10145984032
1175449a67
1240a81600
1324323cac
141556126c
15cc397dc
hex8b38a20

145984032 has 120 divisors (see below), whose sum is σ = 454727196. Its totient is φ = 45785088.

The previous prime is 145984031. The next prime is 145984037. The reversal of 145984032 is 230489541.

It can be written as a sum of positive squares in 2 ways, for example, as 123743376 + 22240656 = 11124^2 + 4716^2 .

It is a super-3 number, since 3×1459840323 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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

It is not an unprimeable number, because it can be changed into a prime (145984031) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 42408 + ... + 45720.

Almost surely, 2145984032 is an apocalyptic number.

145984032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145984032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227363598).

145984032 is an abundant number, since it is smaller than the sum of its proper divisors (308743164).

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

145984032 is a wasteful number, since it uses less digits than its factorization.

145984032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3352 (or 3335 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 145984032 is about 12082.3851949853. The cubic root of 145984032 is about 526.5445453824.

It can be divided in two parts, 1459 and 84032, that added together give a triangular number (85491 = T413).

The spelling of 145984032 in words is "one hundred forty-five million, nine hundred eighty-four thousand, thirty-two".

Divisors: 1 2 3 4 6 8 9 12 16 17 18 24 27 32 34 36 48 51 54 68 72 81 96 102 108 136 144 153 162 204 216 272 288 306 324 408 432 459 544 612 648 816 864 918 1224 1296 1377 1632 1836 2448 2592 2754 3313 3672 4896 5508 6626 7344 9939 11016 13252 14688 19878 22032 26504 29817 39756 44064 53008 56321 59634 79512 89451 106016 112642 119268 159024 168963 178902 225284 238536 268353 318048 337926 357804 450568 477072 506889 536706 675852 715608 901136 954144 1013778 1073412 1351704 1431216 1520667 1802272 2027556 2146824 2703408 2862432 3041334 4055112 4293648 4562001 5406816 6082668 8110224 8587296 9124002 12165336 16220448 18248004 24330672 36496008 48661344 72992016 145984032