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156945412 = 22133018181
BaseRepresentation
bin10010101101011…
…00110000000100
3101221022122122001
421112230300010
5310134223122
623323515044
73614004541
oct1126546004
9357278561
10156945412
1180656458
1244688a84
1326691310
1416bb5bc8
15dba2527
hex95acc04

156945412 has 12 divisors (see below), whose sum is σ = 295781836. Its totient is φ = 72436320.

The previous prime is 156945409. The next prime is 156945433. The reversal of 156945412 is 214549651.

It can be written as a sum of positive squares in 2 ways, for example, as 94945536 + 61999876 = 9744^2 + 7874^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1509039 + ... + 1509142.

Almost surely, 2156945412 is an apocalyptic number.

It is an amenable number.

156945412 is a deficient number, since it is larger than the sum of its proper divisors (138836424).

156945412 is a wasteful number, since it uses less digits than its factorization.

156945412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3018198 (or 3018196 counting only the distinct ones).

The product of its digits is 43200, while the sum is 37.

The square root of 156945412 is about 12527.7855984208. The cubic root of 156945412 is about 539.4065405287.

The spelling of 156945412 in words is "one hundred fifty-six million, nine hundred forty-five thousand, four hundred twelve".

Divisors: 1 2 4 13 26 52 3018181 6036362 12072724 39236353 78472706 156945412