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152439025 = 5241148721
BaseRepresentation
bin10010001011000…
…00100011110001
3101121211201000211
421011200203301
5303011022100
623043144121
73530465434
oct1105404361
9347751024
10152439025
1179058772
1243075041
132577410b
141636181b
15d5b21ba
hex91608f1

152439025 has 12 divisors (see below), whose sum is σ = 193636044. Its totient is φ = 118976000.

The previous prime is 152439019. The next prime is 152439031. The reversal of 152439025 is 520934251.

It is an interprime number because it is at equal distance from previous prime (152439019) and next prime (152439031).

It can be written as a sum of positive squares in 6 ways, for example, as 61732449 + 90706576 = 7857^2 + 9524^2 .

It is not a de Polignac number, because 152439025 - 225 = 118884593 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 73336 + ... + 75385.

It is an arithmetic number, because the mean of its divisors is an integer number (16136337).

Almost surely, 2152439025 is an apocalyptic number.

It is an amenable number.

152439025 is a deficient number, since it is larger than the sum of its proper divisors (41197019).

152439025 is a wasteful number, since it uses less digits than its factorization.

152439025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148772 (or 148767 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 152439025 is about 12346.6199828131. The cubic root of 152439025 is about 534.1936494615.

The spelling of 152439025 in words is "one hundred fifty-two million, four hundred thirty-nine thousand, twenty-five".

Divisors: 1 5 25 41 205 1025 148721 743605 3718025 6097561 30487805 152439025