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80672879112 = 2337288377689
BaseRepresentation
bin100101100100001111…
…0100111001000001000
321201020020020212121120
41023020132213020020
52310204224112422
6101021031435240
75554102105200
oct1131036471010
9251206225546
1080672879112
1131238812121
1213775225b20
1377b8669837
143c94293400
1521725d545c
hex12c87a7208

80672879112 has 96 divisors (see below), whose sum is σ = 234878623200. Its totient is φ = 23022994176.

The previous prime is 80672879069. The next prime is 80672879137. The reversal of 80672879112 is 21197827608.

It is a super-2 number, since 2×806728791122 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 999564 + ... + 1077252.

It is an arithmetic number, because the mean of its divisors is an integer number (2446652325).

Almost surely, 280672879112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80672879112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117439311600).

80672879112 is an abundant number, since it is smaller than the sum of its proper divisors (154205744088).

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

80672879112 is a wasteful number, since it uses less digits than its factorization.

80672879112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78595 (or 78584 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 51.

The spelling of 80672879112 in words is "eighty billion, six hundred seventy-two million, eight hundred seventy-nine thousand, one hundred twelve".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 49 56 84 98 147 168 196 294 392 588 883 1176 1766 2649 3532 5298 6181 7064 10596 12362 18543 21192 24724 37086 43267 49448 74172 77689 86534 129801 148344 155378 173068 233067 259602 310756 346136 466134 519204 543823 621512 932268 1038408 1087646 1631469 1864536 2175292 3262938 3806761 4350584 6525876 7613522 11420283 13051752 15227044 22840566 30454088 45681132 68599387 91362264 137198774 205798161 274397548 411596322 480195709 548795096 823192644 960391418 1440587127 1646385288 1920782836 2881174254 3361369963 3841565672 5762348508 6722739926 10084109889 11524697016 13445479852 20168219778 26890959704 40336439556 80672879112