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34280812961 = 138124823181
BaseRepresentation
bin11111111011010010…
…111011000110100001
310021111002101201210022
4133323102323012201
51030201342003321
623425352443225
72322340050053
oct377322730641
9107432351708
1034280812961
11135a169718a
1267886a9515
133304227215
141932bb98d3
15d5986cdab
hex7fb4bb1a1

34280812961 has 4 divisors (see below), whose sum is σ = 34305637524. Its totient is φ = 34255988400.

The previous prime is 34280812957. The next prime is 34280812999. The reversal of 34280812961 is 16921808243.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15287838736 + 18992974225 = 123644^2 + 137815^2 .

It is a cyclic number.

It is not a de Polignac number, because 34280812961 - 22 = 34280812957 is a prime.

It is a super-3 number, since 3×342808129613 (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34280812561) 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, 12410210 + ... + 12412971.

It is an arithmetic number, because the mean of its divisors is an integer number (8576409381).

Almost surely, 234280812961 is an apocalyptic number.

It is an amenable number.

34280812961 is a deficient number, since it is larger than the sum of its proper divisors (24824563).

34280812961 is a wasteful number, since it uses less digits than its factorization.

34280812961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24824562.

The product of its (nonzero) digits is 165888, while the sum is 44.

The spelling of 34280812961 in words is "thirty-four billion, two hundred eighty million, eight hundred twelve thousand, nine hundred sixty-one".

Divisors: 1 1381 24823181 34280812961