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4260144 = 243731409
BaseRepresentation
bin10000010000000100110000
322000102211010
4100100010300
52042311034
6231150520
751132150
oct20200460
98012733
104260144
11244a789
121515440
13b620c5
147cc760
155923e9
hex410130

4260144 has 80 divisors (see below), whose sum is σ = 13015040. Its totient is φ = 1175040.

The previous prime is 4260133. The next prime is 4260167. The reversal of 4260144 is 4410624.

4260144 = T72 + T73 + ... + T295.

4260144 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 4260144.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10212 + ... + 10620.

It is an arithmetic number, because the mean of its divisors is an integer number (162688).

Almost surely, 24260144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4260144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6507520).

4260144 is an abundant number, since it is smaller than the sum of its proper divisors (8754896).

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

4260144 is a wasteful number, since it uses less digits than its factorization.

4260144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458 (or 452 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 4260144 is about 2064.0116278742. The cubic root of 4260144 is about 162.1093606951.

Adding to 4260144 its reverse (4410624), we get a palindrome (8670768).

The spelling of 4260144 in words is "four million, two hundred sixty thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 31 42 48 56 62 84 93 112 124 168 186 217 248 336 372 409 434 496 651 744 818 868 1227 1302 1488 1636 1736 2454 2604 2863 3272 3472 4908 5208 5726 6544 8589 9816 10416 11452 12679 17178 19632 22904 25358 34356 38037 45808 50716 68712 76074 88753 101432 137424 152148 177506 202864 266259 304296 355012 532518 608592 710024 1065036 1420048 2130072 4260144