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268920254 = 2241755631
BaseRepresentation
bin10000000001110…
…110010110111110
3200202000120020102
4100001312112332
51022320422004
642403521102
76443533031
oct2001662676
9622016212
10268920254
11128886849
1276089192
1343938515
1427a03018
151892011e
hex100765be

268920254 has 8 divisors (see below), whose sum is σ = 403554528. Its totient is φ = 134402080.

The previous prime is 268920233. The next prime is 268920259. The reversal of 268920254 is 452029862.

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

It is a super-2 number, since 2×2689202542 = 144636206022849032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268920259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22982 + ... + 32649.

It is an arithmetic number, because the mean of its divisors is an integer number (50444316).

Almost surely, 2268920254 is an apocalyptic number.

268920254 is a deficient number, since it is larger than the sum of its proper divisors (134634274).

268920254 is a wasteful number, since it uses less digits than its factorization.

268920254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58050.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 268920254 is about 16398.7881869363. The cubic root of 268920254 is about 645.4676847601.

The spelling of 268920254 in words is "two hundred sixty-eight million, nine hundred twenty thousand, two hundred fifty-four".

Divisors: 1 2 2417 4834 55631 111262 134460127 268920254