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152547640 = 2357544813
BaseRepresentation
bin10010001011110…
…11000100111000
3101122001020000121
421011323010320
5303023011030
623045343024
73531430210
oct1105730470
9348036017
10152547640
1179122333
1243107a74
13257b169b
141638d240
15d5d447a
hex917b138

152547640 has 32 divisors (see below), whose sum is σ = 392266080. Its totient is φ = 52301952.

The previous prime is 152547607. The next prime is 152547643. The reversal of 152547640 is 46745251.

It is a junction number, because it is equal to n+sod(n) for n = 152547596 and 152547605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152547643) 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 7 ways as a sum of consecutive naturals, for example, 272127 + ... + 272686.

It is an arithmetic number, because the mean of its divisors is an integer number (12258315).

Almost surely, 2152547640 is an apocalyptic number.

152547640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152547640 is an abundant number, since it is smaller than the sum of its proper divisors (239718440).

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

152547640 is a wasteful number, since it uses less digits than its factorization.

152547640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544831 (or 544827 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 152547640 is about 12351.0177718276. The cubic root of 152547640 is about 534.3204928957.

The spelling of 152547640 in words is "one hundred fifty-two million, five hundred forty-seven thousand, six hundred forty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 544813 1089626 2179252 2724065 3813691 4358504 5448130 7627382 10896260 15254764 19068455 21792520 30509528 38136910 76273820 152547640