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268900939 = 1919971119
BaseRepresentation
bin10000000001110…
…001101001001011
3200201222120202001
4100001301221023
51022314312224
642403251431
76443422516
oct2001615113
9621876661
10268900939
1112887328a
1276079b77
134392c7a8
14279d9d7d
1518919544
hex10071a4b

268900939 has 8 divisors (see below), whose sum is σ = 284480000. Its totient is φ = 253464552.

The previous prime is 268900909. The next prime is 268900979. The reversal of 268900939 is 939009862.

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 268900939 - 221 = 266803787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268900909) by changing a digit.

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, 31779 + ... + 39340.

It is an arithmetic number, because the mean of its divisors is an integer number (35560000).

Almost surely, 2268900939 is an apocalyptic number.

268900939 is a deficient number, since it is larger than the sum of its proper divisors (15579061).

268900939 is a wasteful number, since it uses less digits than its factorization.

268900939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71337.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 268900939 is about 16398.1992608945. The cubic root of 268900939 is about 645.4522309758.

The spelling of 268900939 in words is "two hundred sixty-eight million, nine hundred thousand, nine hundred thirty-nine".

Divisors: 1 19 199 3781 71119 1351261 14152681 268900939