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152178132 = 22331409081
BaseRepresentation
bin10010001001000…
…00110111010100
3101121100110011010
421010200313110
5302424200012
623033412220
73525331011
oct1104406724
9347313133
10152178132
117899a757
1242b6a070
13256b2442
14162d4708
15d55ec3c
hex9120dd4

152178132 has 24 divisors (see below), whose sum is σ = 366537472. Its totient is φ = 49089600.

The previous prime is 152178121. The next prime is 152178137. The reversal of 152178132 is 231871251.

It is a self number, because there is not a number n which added to its sum of digits gives 152178132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152178137) 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, 204169 + ... + 204912.

Almost surely, 2152178132 is an apocalyptic number.

152178132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

152178132 is an abundant number, since it is smaller than the sum of its proper divisors (214359340).

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

152178132 is a wasteful number, since it uses less digits than its factorization.

152178132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409119 (or 409117 counting only the distinct ones).

The product of its digits is 3360, while the sum is 30.

The square root of 152178132 is about 12336.0500971745. The cubic root of 152178132 is about 533.8887254291. Note that the first 3 decimals are identical.

The spelling of 152178132 in words is "one hundred fifty-two million, one hundred seventy-eight thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 31 62 93 124 186 372 409081 818162 1227243 1636324 2454486 4908972 12681511 25363022 38044533 50726044 76089066 152178132