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23111928112 = 2471334914547
BaseRepresentation
bin10101100001100101…
…000000100100110000
32012122201011121002111
4111201211000210300
5334313123144422
614341212455104
71445510101420
oct254145004460
965581147074
1023111928112
119890098739
12459017a494
13224431b010
141193706480
1590406da77
hex561940930

23111928112 has 80 divisors (see below), whose sum is σ = 55140970752. Its totient is φ = 9138551040.

The previous prime is 23111928109. The next prime is 23111928163. The reversal of 23111928112 is 21182911132.

It is a super-2 number, since 2×231119281122 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5080623 + ... + 5085169.

Almost surely, 223111928112 is an apocalyptic number.

It is an amenable number.

23111928112 is an abundant number, since it is smaller than the sum of its proper divisors (32029042640).

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

23111928112 is a wasteful number, since it uses less digits than its factorization.

23111928112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8066 (or 8060 counting only the distinct ones).

The product of its digits is 1728, while the sum is 31.

The spelling of 23111928112 in words is "twenty-three billion, one hundred eleven million, nine hundred twenty-eight thousand, one hundred twelve".

Divisors: 1 2 4 7 8 13 14 16 26 28 52 56 91 104 112 182 208 364 728 1456 3491 4547 6982 9094 13964 18188 24437 27928 31829 36376 45383 48874 55856 59111 63658 72752 90766 97748 118222 127316 181532 195496 236444 254632 317681 363064 390992 413777 472888 509264 635362 726128 827554 945776 1270724 1655108 2541448 3310216 5082896 6620432 15873577 31747154 63494308 111115039 126988616 206356501 222230078 253977232 412713002 444460156 825426004 888920312 1444495507 1650852008 1777840624 2888991014 3301704016 5777982028 11555964056 23111928112