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252780348 = 223153113759
BaseRepresentation
bin11110001000100…
…01111100111100
3122121122120110010
433010101330330
51004202432343
641025543220
76156411642
oct1704217474
9577576403
10252780348
1111a762687
12707a4b10
13404a7092
1425801192
15172d2d33
hexf111f3c

252780348 has 24 divisors (see below), whose sum is σ = 590248960. Its totient is φ = 84198960.

The previous prime is 252780299. The next prime is 252780379. The reversal of 252780348 is 843087252.

It is a super-2 number, since 2×2527803482 = 127795808670002208, which contains 22 as substring.

It is a congruent number.

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, 11493 + ... + 25251.

Almost surely, 2252780348 is an apocalyptic number.

It is an amenable number.

252780348 is an abundant number, since it is smaller than the sum of its proper divisors (337468612).

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

252780348 is a wasteful number, since it uses less digits than its factorization.

252780348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15297 (or 15295 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 252780348 is about 15899.0675198264. The cubic root of 252780348 is about 632.2872665926.

The spelling of 252780348 in words is "two hundred fifty-two million, seven hundred eighty thousand, three hundred forty-eight".

Divisors: 1 2 3 4 6 12 1531 3062 4593 6124 9186 13759 18372 27518 41277 55036 82554 165108 21065029 42130058 63195087 84260116 126390174 252780348