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162145256 = 23713713137
BaseRepresentation
bin10011010101000…
…10001111101000
3102022002211110212
421222202033220
5313002122011
624031200252
74006132460
oct1152421750
9368084425
10162145256
1183588149
1246376088
1327792050
141776aba0
15e37d08b
hex9aa23e8

162145256 has 64 divisors (see below), whose sum is σ = 379572480. Its totient is φ = 63221760.

The previous prime is 162145241. The next prime is 162145261. The reversal of 162145256 is 652541261.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50120 + ... + 53256.

It is an arithmetic number, because the mean of its divisors is an integer number (5930820).

Almost surely, 2162145256 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 162145256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189786240).

162145256 is an abundant number, since it is smaller than the sum of its proper divisors (217427224).

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

162145256 is a wasteful number, since it uses less digits than its factorization.

162145256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3234 (or 3230 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The square root of 162145256 is about 12733.6269774169. The cubic root of 162145256 is about 545.2990598368.

The spelling of 162145256 in words is "one hundred sixty-two million, one hundred forty-five thousand, two hundred fifty-six".

Divisors: 1 2 4 7 8 13 14 26 28 52 56 71 91 104 142 182 284 364 497 568 728 923 994 1846 1988 3137 3692 3976 6274 6461 7384 12548 12922 21959 25096 25844 40781 43918 51688 81562 87836 163124 175672 222727 285467 326248 445454 570934 890908 1141868 1559089 1781816 2283736 2895451 3118178 5790902 6236356 11581804 12472712 20268157 23163608 40536314 81072628 162145256