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268001601 = 3712761981
BaseRepresentation
bin11111111100101…
…10000101000001
3200200021220002020
433332112011001
51022102022401
642332112053
76432655530
oct1776260501
9620256066
10268001601
1112830962a
1275905629
13436a633a
1427844317
15187dcd36
hexff96141

268001601 has 8 divisors (see below), whose sum is σ = 408383424. Its totient is φ = 153143760.

The previous prime is 268001597. The next prime is 268001647. The reversal of 268001601 is 106100862.

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

It is not a de Polignac number, because 268001601 - 22 = 268001597 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (268001401) 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, 6380970 + ... + 6381011.

It is an arithmetic number, because the mean of its divisors is an integer number (51047928).

Almost surely, 2268001601 is an apocalyptic number.

268001601 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

268001601 is a deficient number, since it is larger than the sum of its proper divisors (140381823).

268001601 is a wasteful number, since it uses less digits than its factorization.

268001601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12761991.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 268001601 is about 16370.7544419920. The cubic root of 268001601 is about 644.7318565720.

The spelling of 268001601 in words is "two hundred sixty-eight million, one thousand, six hundred one".

Divisors: 1 3 7 21 12761981 38285943 89333867 268001601