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252345488 = 2441384673
BaseRepresentation
bin11110000101001…
…11110010010000
3122120211110221012
433002213302100
51004100023423
641012350052
76152621063
oct1702476220
9576743835
10252345488
1111a49599a
1270615328
1340384175
142572a8da
1517249078
hexf0a7c90

252345488 has 20 divisors (see below), whose sum is σ = 500845548. Its totient is φ = 123095040.

The previous prime is 252345469. The next prime is 252345503. The reversal of 252345488 is 884543252.

It can be written as a sum of positive squares in 2 ways, for example, as 8111104 + 244234384 = 2848^2 + 15628^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

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, 191681 + ... + 192992.

Almost surely, 2252345488 is an apocalyptic number.

It is an amenable number.

252345488 is a deficient number, since it is larger than the sum of its proper divisors (248500060).

252345488 is a wasteful number, since it uses less digits than its factorization.

252345488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384722 (or 384716 counting only the distinct ones).

The product of its digits is 307200, while the sum is 41.

The square root of 252345488 is about 15885.3859883857. The cubic root of 252345488 is about 631.9244822442.

The spelling of 252345488 in words is "two hundred fifty-two million, three hundred forty-five thousand, four hundred eighty-eight".

Divisors: 1 2 4 8 16 41 82 164 328 656 384673 769346 1538692 3077384 6154768 15771593 31543186 63086372 126172744 252345488