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268911830 = 25112444653
BaseRepresentation
bin10000000001110…
…100010011010110
3200202000010200102
4100001310103112
51022320134310
642403414102
76443466335
oct2001642326
9622003612
10268911830
11128880490
1276084332
1343934735
14279ddd1c
151891c8a5
hex100744d6

268911830 has 16 divisors (see below), whose sum is σ = 528045264. Its totient is φ = 97786080.

The previous prime is 268911827. The next prime is 268911857. The reversal of 268911830 is 38119862.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1222217 + ... + 1222436.

It is an arithmetic number, because the mean of its divisors is an integer number (33002829).

Almost surely, 2268911830 is an apocalyptic number.

268911830 is a deficient number, since it is larger than the sum of its proper divisors (259133434).

268911830 is a wasteful number, since it uses less digits than its factorization.

268911830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2444671.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 268911830 is about 16398.5313366777. The cubic root of 268911830 is about 645.4609448729.

The spelling of 268911830 in words is "two hundred sixty-eight million, nine hundred eleven thousand, eight hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 2444653 4889306 12223265 24446530 26891183 53782366 134455915 268911830