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152055140 = 22517447221
BaseRepresentation
bin10010001000000…
…10110101100100
3101121010012102212
421010002311210
5302411231030
623031022552
73524306306
oct1104026544
9347105385
10152055140
1178916306
1242b0aa58
132566b473
14162a1976
15d538595
hex9102d64

152055140 has 24 divisors (see below), whose sum is σ = 338099832. Its totient is φ = 57244160.

The previous prime is 152055121. The next prime is 152055151. The reversal of 152055140 is 41550251.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 29333056 + 122722084 = 5416^2 + 11078^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223271 + ... + 223950.

It is an arithmetic number, because the mean of its divisors is an integer number (14087493).

Almost surely, 2152055140 is an apocalyptic number.

152055140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152055140 is an abundant number, since it is smaller than the sum of its proper divisors (186044692).

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

152055140 is a wasteful number, since it uses less digits than its factorization.

152055140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447247 (or 447245 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 152055140 is about 12331.0640254603. The cubic root of 152055140 is about 533.7448551298.

The spelling of 152055140 in words is "one hundred fifty-two million, fifty-five thousand, one hundred forty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 447221 894442 1788884 2236105 4472210 7602757 8944420 15205514 30411028 38013785 76027570 152055140