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981307340068 = 221138215836807
BaseRepresentation
bin11100100011110100111…
…10011011010100100100
310110210220222212220122211
432101322132123110210
5112034204134340233
62030450101533204
7130616465523136
oct16217236332444
93423828786584
10981307340068
11349196457910
1213a225a14204
13716c96c8b13
14356d1a33056
151a7d568a5cd
hexe47a79b524

981307340068 has 24 divisors (see below), whose sum is σ = 1873895534784. Its totient is φ = 445931978400.

The previous prime is 981307340059. The next prime is 981307340071. The reversal of 981307340068 is 860043703189.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2750280 + ... + 3086527.

It is an arithmetic number, because the mean of its divisors is an integer number (78078980616).

Almost surely, 2981307340068 is an apocalyptic number.

It is an amenable number.

981307340068 is a deficient number, since it is larger than the sum of its proper divisors (892588194716).

981307340068 is a wasteful number, since it uses less digits than its factorization.

981307340068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5840643 (or 5840641 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 981307340068 in words is "nine hundred eighty-one billion, three hundred seven million, three hundred forty thousand, sixty-eight".

Divisors: 1 2 4 11 22 44 3821 7642 15284 42031 84062 168124 5836807 11673614 23347228 64204877 128409754 256819508 22302439547 44604879094 89209758188 245326835017 490653670034 981307340068