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253834370 = 2597725981
BaseRepresentation
bin11110010000100…
…11010010000010
3122200122010021222
433020103102002
51004440144440
641104315042
76201361616
oct1710232202
9580563258
10253834370
11120312579
1271012a82
1340785a6a
14259d7346
15174402b5
hexf213482

253834370 has 16 divisors (see below), whose sum is σ = 457387128. Its totient is φ = 101425920.

The previous prime is 253834349. The next prime is 253834381. The reversal of 253834370 is 73438352.

It can be written as a sum of positive squares in 4 ways, for example, as 245580241 + 8254129 = 15671^2 + 2873^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 253834370.

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 7 ways as a sum of consecutive naturals, for example, 3221 + ... + 22760.

Almost surely, 2253834370 is an apocalyptic number.

253834370 is a deficient number, since it is larger than the sum of its proper divisors (203552758).

253834370 is a wasteful number, since it uses less digits than its factorization.

253834370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26965.

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 253834370 is about 15932.1803278773. The cubic root of 253834370 is about 633.1648671650.

The spelling of 253834370 in words is "two hundred fifty-three million, eight hundred thirty-four thousand, three hundred seventy".

Divisors: 1 2 5 10 977 1954 4885 9770 25981 51962 129905 259810 25383437 50766874 126917185 253834370