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152512340 = 2257625617
BaseRepresentation
bin10010001011100…
…10011101010100
3101121222102121012
421011302131110
5303020343330
623044511352
73531222251
oct1105623524
9347872535
10152512340
11790a8862
12430ab558
132579b5b6
1416380428
15d5c8c95
hex9172754

152512340 has 12 divisors (see below), whose sum is σ = 320275956. Its totient is φ = 61004928.

The previous prime is 152512337. The next prime is 152512351. The reversal of 152512340 is 43215251.

It can be written as a sum of positive squares in 2 ways, for example, as 16370116 + 136142224 = 4046^2 + 11668^2 .

It is a congruent number.

It is an unprimeable number.

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, 3812789 + ... + 3812828.

It is an arithmetic number, because the mean of its divisors is an integer number (26689663).

Almost surely, 2152512340 is an apocalyptic number.

152512340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152512340 is an abundant number, since it is smaller than the sum of its proper divisors (167763616).

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

152512340 is a wasteful number, since it uses less digits than its factorization.

152512340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7625626 (or 7625624 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 152512340 is about 12349.5886571173. The cubic root of 152512340 is about 534.2792752397.

Adding to 152512340 its reverse (43215251), we get a palindrome (195727591).

The spelling of 152512340 in words is "one hundred fifty-two million, five hundred twelve thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 7625617 15251234 30502468 38128085 76256170 152512340