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268810997 = 7132953967
BaseRepresentation
bin10000000001011…
…011101011110101
3200201211000100212
4100001123223311
51022303422442
642401315205
76442566350
oct2001335365
9621730325
10268810997
11128811754
1276035b05
13438ca880
14279b5297
15188eca82
hex1005baf5

268810997 has 8 divisors (see below), whose sum is σ = 330844416. Its totient is φ = 212685552.

The previous prime is 268810967. The next prime is 268811003. The reversal of 268810997 is 799018862.

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 268810997 - 26 = 268810933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268810937) 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, 1476893 + ... + 1477074.

It is an arithmetic number, because the mean of its divisors is an integer number (41355552).

Almost surely, 2268810997 is an apocalyptic number.

It is an amenable number.

268810997 is a deficient number, since it is larger than the sum of its proper divisors (62033419).

268810997 is a wasteful number, since it uses less digits than its factorization.

268810997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2953987.

The product of its (nonzero) digits is 435456, while the sum is 50.

The square root of 268810997 is about 16395.4565962647. The cubic root of 268810997 is about 645.3802593190.

The spelling of 268810997 in words is "two hundred sixty-eight million, eight hundred ten thousand, nine hundred ninety-seven".

Divisors: 1 7 13 91 2953967 20677769 38401571 268810997