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253120338 = 23214062241
BaseRepresentation
bin11110001011001…
…00111101010010
3122122021211211100
433011210331102
51004244322323
641041125230
76162326112
oct1705447522
9578254740
10253120338
1111a975069
1270929816
1340595a63
142588d042
151734d943
hexf164f52

253120338 has 12 divisors (see below), whose sum is σ = 548427438. Its totient is φ = 84373440.

The previous prime is 253120321. The next prime is 253120393. The reversal of 253120338 is 833021352.

It can be written as a sum of positive squares in only one way, i.e., 174319209 + 78801129 = 13203^2 + 8877^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7031103 + ... + 7031138.

Almost surely, 2253120338 is an apocalyptic number.

253120338 is an abundant number, since it is smaller than the sum of its proper divisors (295307100).

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

253120338 is a wasteful number, since it uses less digits than its factorization.

253120338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14062249 (or 14062246 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 253120338 is about 15909.7560634976. The cubic root of 253120338 is about 632.5706154136.

The spelling of 253120338 in words is "two hundred fifty-three million, one hundred twenty thousand, three hundred thirty-eight".

Divisors: 1 2 3 6 9 18 14062241 28124482 42186723 84373446 126560169 253120338