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268207790 = 2526820779
BaseRepresentation
bin11111111110010…
…00011010101110
3200200200100220212
433333020122232
51022130122130
642340342422
76434504624
oct1777103256
9620610825
10268207790
1112843a534
12759a4a12
1343749146
1427899514
151882de95
hexffc86ae

268207790 has 8 divisors (see below), whose sum is σ = 482774040. Its totient is φ = 107283112.

The previous prime is 268207763. The next prime is 268207799. The reversal of 268207790 is 97702862.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268207799) 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, 13410380 + ... + 13410399.

It is an arithmetic number, because the mean of its divisors is an integer number (60346755).

Almost surely, 2268207790 is an apocalyptic number.

268207790 is a deficient number, since it is larger than the sum of its proper divisors (214566250).

268207790 is a wasteful number, since it uses less digits than its factorization.

268207790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26820786.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 268207790 is about 16377.0507112850. The cubic root of 268207790 is about 644.8971572504.

The spelling of 268207790 in words is "two hundred sixty-eight million, two hundred seven thousand, seven hundred ninety".

Divisors: 1 2 5 10 26820779 53641558 134103895 268207790