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20101310012 = 2272832536763
BaseRepresentation
bin10010101110001000…
…011010011000111100
31220212220011100110102
4102232020122120330
5312131413410022
613122344500232
71311062213240
oct225610323074
956786140412
1020101310012
118585735803
123a8ba7a678
131b846897a4
14d89938420
157c9acda92
hex4ae21a63c

20101310012 has 24 divisors (see below), whose sum is σ = 40344694656. Its totient is φ = 8584402608.

The previous prime is 20101309967. The next prime is 20101310027. The reversal of 20101310012 is 21001310102.

It is a junction number, because it is equal to n+sod(n) for n = 20101309975 and 20101310002.

It is a congruent 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, 1260458 + ... + 1276305.

It is an arithmetic number, because the mean of its divisors is an integer number (1681028944).

Almost surely, 220101310012 is an apocalyptic number.

It is an amenable number.

20101310012 is an abundant number, since it is smaller than the sum of its proper divisors (20243384644).

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

20101310012 is a wasteful number, since it uses less digits than its factorization.

20101310012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2537057 (or 2537055 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 20101310012 its reverse (21001310102), we get a palindrome (41102620114).

The spelling of 20101310012 in words is "twenty billion, one hundred one million, three hundred ten thousand, twelve".

Divisors: 1 2 4 7 14 28 283 566 1132 1981 3962 7924 2536763 5073526 10147052 17757341 35514682 71029364 717903929 1435807858 2871615716 5025327503 10050655006 20101310012