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268930239 = 3314796037
BaseRepresentation
bin10000000001111…
…000110010111111
3200202001001221020
4100001320302333
51022321231424
642404035223
76443604114
oct2001706277
9622031836
10268930239
111288932a6
1276092b13
134393cc26
1427a0690b
1518923079
hex10078cbf

268930239 has 16 divisors (see below), whose sum is σ = 370974720. Its totient is φ = 173112480.

The previous prime is 268930217. The next prime is 268930241. The reversal of 268930239 is 932039862.

It is not a de Polignac number, because 268930239 - 213 = 268922047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 268930239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268930289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41529 + ... + 47565.

It is an arithmetic number, because the mean of its divisors is an integer number (23185920).

Almost surely, 2268930239 is an apocalyptic number.

268930239 is a deficient number, since it is larger than the sum of its proper divisors (102044481).

268930239 is a wasteful number, since it uses less digits than its factorization.

268930239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6550.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 268930239 is about 16399.0926273376. The cubic root of 268930239 is about 645.4756733924.

The spelling of 268930239 in words is "two hundred sixty-eight million, nine hundred thirty thousand, two hundred thirty-nine".

Divisors: 1 3 31 93 479 1437 6037 14849 18111 44547 187147 561441 2891723 8675169 89643413 268930239