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152161672 = 231310211433
BaseRepresentation
bin10010001000111…
…00110110001000
3101121022121120111
421010130312020
5302423133142
623033204104
73525232015
oct1104346610
9347277514
10152161672
1178989353
1242b60634
13256a7ac0
14162cc70c
15d559e17
hex911cd88

152161672 has 32 divisors (see below), whose sum is σ = 307765080. Its totient is φ = 70110720.

The previous prime is 152161661. The next prime is 152161673. The reversal of 152161672 is 276161251.

It can be written as a sum of positive squares in 4 ways, for example, as 132572196 + 19589476 = 11514^2 + 4426^2 .

It is not an unprimeable number, because it can be changed into a prime (152161673) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 105468 + ... + 106900.

Almost surely, 2152161672 is an apocalyptic number.

It is an amenable number.

152161672 is an abundant number, since it is smaller than the sum of its proper divisors (155603408).

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

152161672 is a wasteful number, since it uses less digits than its factorization.

152161672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2473 (or 2469 counting only the distinct ones).

The product of its digits is 5040, while the sum is 31.

The square root of 152161672 is about 12335.3829287947. The cubic root of 152161672 is about 533.8694757836.

The spelling of 152161672 in words is "one hundred fifty-two million, one hundred sixty-one thousand, six hundred seventy-two".

Divisors: 1 2 4 8 13 26 52 104 1021 1433 2042 2866 4084 5732 8168 11464 13273 18629 26546 37258 53092 74516 106184 149032 1463093 2926186 5852372 11704744 19020209 38040418 76080836 152161672