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156349027 = 315043517
BaseRepresentation
bin10010101000110…
…11001001100011
3101220012100112201
421110123021203
5310011132102
623303034031
73605642032
oct1124331143
9356170481
10156349027
118028937a
124443b917
1326512a23
1416a9c719
15dad5987
hex951b263

156349027 has 4 divisors (see below), whose sum is σ = 161392576. Its totient is φ = 151305480.

The previous prime is 156349003. The next prime is 156349033. The reversal of 156349027 is 720943651.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-156349027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (156349057) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2521728 + ... + 2521789.

It is an arithmetic number, because the mean of its divisors is an integer number (40348144).

Almost surely, 2156349027 is an apocalyptic number.

156349027 is a deficient number, since it is larger than the sum of its proper divisors (5043549).

156349027 is an equidigital number, since it uses as much as digits as its factorization.

156349027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5043548.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 156349027 is about 12503.9604525926. The cubic root of 156349027 is about 538.7224336539.

The spelling of 156349027 in words is "one hundred fifty-six million, three hundred forty-nine thousand, twenty-seven".

Divisors: 1 31 5043517 156349027