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156940956 = 22337197211
BaseRepresentation
bin10010101101010…
…11101010011100
3101221022102112000
421112223222130
5310134102311
623323442300
73613655544
oct1126535234
9357272460
10156940956
1180653077
1244686390
132668c293
1416bb4324
15dba1056
hex95aba9c

156940956 has 96 divisors (see below), whose sum is σ = 418844160. Its totient is φ = 50803200.

The previous prime is 156940951. The next prime is 156940961. The reversal of 156940956 is 659049651.

It is a happy number.

156940956 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (156940951) and next prime (156940961).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156940951) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 743691 + ... + 743901.

It is an arithmetic number, because the mean of its divisors is an integer number (4362960).

Almost surely, 2156940956 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 156940956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209422080).

156940956 is an abundant number, since it is smaller than the sum of its proper divisors (261903204).

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

156940956 is a wasteful number, since it uses less digits than its factorization.

156940956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The square root of 156940956 is about 12527.6077524801. The cubic root of 156940956 is about 539.4014355302.

The spelling of 156940956 in words is "one hundred fifty-six million, nine hundred forty thousand, nine hundred fifty-six".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 71 97 108 142 194 211 213 284 291 388 422 426 582 633 639 844 852 873 1164 1266 1278 1746 1899 1917 2532 2556 2619 3492 3798 3834 5238 5697 6887 7596 7668 10476 11394 13774 14981 20467 20661 22788 27548 29962 40934 41322 44943 59924 61401 61983 81868 82644 89886 122802 123966 134829 179772 184203 185949 245604 247932 269658 368406 371898 404487 539316 552609 736812 743796 808974 1105218 1453157 1617948 2210436 2906314 4359471 5812628 8718942 13078413 17437884 26156826 39235239 52313652 78470478 156940956