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268892031 = 3293090713
BaseRepresentation
bin10000000001101…
…111011101111111
3200201222010112010
4100001233131333
51022314021111
642403142303
76443354532
oct2001573577
9621863463
10268892031
11128867621
1276074993
1343928715
14279d6a19
1518916aa6
hex1006f77f

268892031 has 8 divisors (see below), whose sum is σ = 370885680. Its totient is φ = 173079872.

The previous prime is 268892027. The next prime is 268892053. The reversal of 268892031 is 130298862.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 268892031 - 22 = 268892027 is a prime.

It is a super-2 number, since 2×2688920312 = 144605848670609922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268892021) by changing a digit.

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, 1545270 + ... + 1545443.

It is an arithmetic number, because the mean of its divisors is an integer number (46360710).

Almost surely, 2268892031 is an apocalyptic number.

268892031 is a deficient number, since it is larger than the sum of its proper divisors (101993649).

268892031 is a wasteful number, since it uses less digits than its factorization.

268892031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3090745.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 268892031 is about 16397.9276434554. The cubic root of 268892031 is about 645.4451035035.

It can be divided in two parts, 26889 and 2031, that added together give a triangular number (28920 = T240).

The spelling of 268892031 in words is "two hundred sixty-eight million, eight hundred ninety-two thousand, thirty-one".

Divisors: 1 3 29 87 3090713 9272139 89630677 268892031