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80634415974 = 2372165612
BaseRepresentation
bin100101100011000101…
…1111000101101100110
321201010112212202002220
41023012023320231212
52310114402302344
6101013135213210
75553124140600
oct1130613705546
9251115782086
1080634415974
1131219031202
1213764377206
1377b06c0698
143c8d120170
15216e038c19
hex12c62f8b66

80634415974 has 36 divisors (see below), whose sum is σ = 187609765572. Its totient is φ = 23037013440.

The previous prime is 80634415969. The next prime is 80634416021. The reversal of 80634415974 is 47951443608.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4860654 + ... + 4877214.

It is an arithmetic number, because the mean of its divisors is an integer number (5211382377).

Almost surely, 280634415974 is an apocalyptic number.

80634415974 is an abundant number, since it is smaller than the sum of its proper divisors (106975349598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80634415974 is an frugal number, since it uses more digits than its factorization.

80634415974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33141 (or 16573 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 51.

The spelling of 80634415974 in words is "eighty billion, six hundred thirty-four million, four hundred fifteen thousand, nine hundred seventy-four".

Divisors: 1 2 3 6 7 14 21 42 49 98 147 294 16561 33122 49683 99366 115927 231854 347781 695562 811489 1622978 2434467 4868934 274266721 548533442 822800163 1645600326 1919867047 3839734094 5759601141 11519202282 13439069329 26878138658 40317207987 80634415974