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268960731 = 3136896429
BaseRepresentation
bin10000000010000…
…000001111011011
3200202002121202120
4100002000033123
51022323220411
642404432323
76444062034
oct2002001733
9622077676
10268960731
111289041a6
12760a86a3
1343950a80
1427a13a8b
151892c106
hex100803db

268960731 has 8 divisors (see below), whose sum is σ = 386200080. Its totient is φ = 165514272.

The previous prime is 268960693. The next prime is 268960777. The reversal of 268960731 is 137069862.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 268960731 - 26 = 268960667 is a prime.

It is a super-2 number, since 2×2689607312 = 144679749640108722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (268960031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3448176 + ... + 3448253.

It is an arithmetic number, because the mean of its divisors is an integer number (48275010).

Almost surely, 2268960731 is an apocalyptic number.

268960731 is a deficient number, since it is larger than the sum of its proper divisors (117239349).

268960731 is a wasteful number, since it uses less digits than its factorization.

268960731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6896445.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 268960731 is about 16400.0222865702. The cubic root of 268960731 is about 645.5000676994.

The spelling of 268960731 in words is "two hundred sixty-eight million, nine hundred sixty thousand, seven hundred thirty-one".

Divisors: 1 3 13 39 6896429 20689287 89653577 268960731