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334840081 = 817940939
BaseRepresentation
bin10011111101010…
…100000100010001
3212100001122020111
4103331110010101
51141204340311
653120441321
711204044102
oct2375240421
9770048214
10334840081
11162010344
1294179241
13544a8b34
14326823a9
151e5e1d21
hex13f54111

334840081 has 4 divisors (see below), whose sum is σ = 334889200. Its totient is φ = 334790964.

The previous prime is 334840073. The next prime is 334840087. The reversal of 334840081 is 180048433.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 334840081 - 23 = 334840073 is a prime.

It is a super-2 number, since 2×3348400812 = 224235759688173122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (334840087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12291 + ... + 28648.

It is an arithmetic number, because the mean of its divisors is an integer number (83722300).

Almost surely, 2334840081 is an apocalyptic number.

It is an amenable number.

334840081 is a deficient number, since it is larger than the sum of its proper divisors (49119).

334840081 is an equidigital number, since it uses as much as digits as its factorization.

334840081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49118.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 334840081 is about 18298.6360420661. The cubic root of 334840081 is about 694.4044246439.

The spelling of 334840081 in words is "three hundred thirty-four million, eight hundred forty thousand, eighty-one".

Divisors: 1 8179 40939 334840081