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156145132 = 221113272981
BaseRepresentation
bin10010100111010…
…01010111101100
3101212210222212001
421103221113230
5304433121012
623254422044
73604132423
oct1123512754
9355728761
10156145132
118015a170
1244361924
1326470c90
1416a482ba
15da95357
hex94e95ec

156145132 has 24 divisors (see below), whose sum is σ = 321026832. Its totient is φ = 65515200.

The previous prime is 156145127. The next prime is 156145141. The reversal of 156145132 is 231541651.

It is a self number, because there is not a number n which added to its sum of digits gives 156145132.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135919 + ... + 137062.

It is an arithmetic number, because the mean of its divisors is an integer number (13376118).

Almost surely, 2156145132 is an apocalyptic number.

It is an amenable number.

156145132 is an abundant number, since it is smaller than the sum of its proper divisors (164881700).

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

156145132 is a wasteful number, since it uses less digits than its factorization.

156145132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273009 (or 273007 counting only the distinct ones).

The product of its digits is 3600, while the sum is 28.

The square root of 156145132 is about 12495.8045759367. The cubic root of 156145132 is about 538.4881488702.

Adding to 156145132 its reverse (231541651), we get a palindrome (387686783).

The spelling of 156145132 in words is "one hundred fifty-six million, one hundred forty-five thousand, one hundred thirty-two".

Divisors: 1 2 4 11 13 22 26 44 52 143 286 572 272981 545962 1091924 3002791 3548753 6005582 7097506 12011164 14195012 39036283 78072566 156145132