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80640185379024 = 2431862279021269
BaseRepresentation
bin10010010101011110000001…
…100110101010100011010000
3101120112010102011120211211110
4102111132001212222203100
541032202044424112044
6443301331215013320
722662026653056645
oct2225360146524320
9346463364524743
1080640185379024
11237703463a7787
129064736b0a240
1335cc44c0aa2bb
1415cb011c9ddcc
1594c9826aa6b9
hex4957819aa8d0

80640185379024 has 40 divisors (see below), whose sum is σ = 208321620625440. Its totient is φ = 26879914473088.

The previous prime is 80640185379023. The next prime is 80640185379043. The reversal of 80640185379024 is 42097358104608.

It is a happy number.

It is a super-2 number, since 2×806401853790242 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80640185379023) 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, 4428262 + ... + 13449530.

It is an arithmetic number, because the mean of its divisors is an integer number (5208040515636).

It is a 1-persistent number, because it is pandigital, but 2⋅80640185379024 = 161280370758048 is not.

Almost surely, 280640185379024 is an apocalyptic number.

It is an amenable number.

80640185379024 is an abundant number, since it is smaller than the sum of its proper divisors (127681435246416).

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

80640185379024 is a wasteful number, since it uses less digits than its factorization.

80640185379024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9207507 (or 9207501 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 57.

The spelling of 80640185379024 in words is "eighty trillion, six hundred forty billion, one hundred eighty-five million, three hundred seventy-nine thousand, twenty-four".

Divisors: 1 2 3 4 6 8 12 16 24 48 186227 372454 558681 744908 1117362 1489816 2234724 2979632 4469448 8938896 9021269 18042538 27063807 36085076 54127614 72170152 108255228 144340304 216510456 433020912 1680003862063 3360007724126 5040011586189 6720015448252 10080023172378 13440030896504 20160046344756 26880061793008 40320092689512 80640185379024