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268870838 = 2134435419
BaseRepresentation
bin10000000001101…
…010010010110110
3200201221001110012
4100001222102312
51022312331323
642402500222
76443235665
oct2001522266
9621831405
10268870838
11128852705
1276064672
134391bb92
14279ccddc
1518910678
hex1006a4b6

268870838 has 4 divisors (see below), whose sum is σ = 403306260. Its totient is φ = 134435418.

The previous prime is 268870829. The next prime is 268870867. The reversal of 268870838 is 838078862.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 67217708 + ... + 67217711.

It is an arithmetic number, because the mean of its divisors is an integer number (100826565).

Almost surely, 2268870838 is an apocalyptic number.

268870838 is a deficient number, since it is larger than the sum of its proper divisors (134435422).

268870838 is a wasteful number, since it uses less digits than its factorization.

268870838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134435421.

The product of its (nonzero) digits is 1032192, while the sum is 50.

The square root of 268870838 is about 16397.2814210161. The cubic root of 268870838 is about 645.4281459197.

The spelling of 268870838 in words is "two hundred sixty-eight million, eight hundred seventy thousand, eight hundred thirty-eight".

Divisors: 1 2 134435419 268870838