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253672338 = 23291457887
BaseRepresentation
bin11110001111010…
…11101110010010
3122200022220000210
433013223232102
51004420003323
641101024550
76200115333
oct1707535622
9580286023
10253672338
11120211867
1270b55156
134072a09a
142599428a
151740c293
hexf1ebb92

253672338 has 16 divisors (see below), whose sum is σ = 524839680. Its totient is φ = 81641616.

The previous prime is 253672303. The next prime is 253672373. The reversal of 253672338 is 833276352.

It is an interprime number because it is at equal distance from previous prime (253672303) and next prime (253672373).

It is a junction number, because it is equal to n+sod(n) for n = 253672296 and 253672305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 728770 + ... + 729117.

It is an arithmetic number, because the mean of its divisors is an integer number (32802480).

Almost surely, 2253672338 is an apocalyptic number.

253672338 is an abundant number, since it is smaller than the sum of its proper divisors (271167342).

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

253672338 is a wasteful number, since it uses less digits than its factorization.

253672338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457921.

The product of its digits is 181440, while the sum is 39.

The square root of 253672338 is about 15927.0944619538. The cubic root of 253672338 is about 633.0301141932.

The spelling of 253672338 in words is "two hundred fifty-three million, six hundred seventy-two thousand, three hundred thirty-eight".

Divisors: 1 2 3 6 29 58 87 174 1457887 2915774 4373661 8747322 42278723 84557446 126836169 253672338