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10120131020 = 2253591409489
BaseRepresentation
bin10010110110011010…
…01111000111001100
3222010021210220220102
421123031033013030
5131211223143040
64352113310232
7505533460106
oct113315170714
928107726812
1010120131020
11432360624a
121b65265378
13c5385bc0c
146c00b4576
153e36dc515
hex25b34f1cc

10120131020 has 24 divisors (see below), whose sum is σ = 21311488800. Its totient is φ = 4036773632.

The previous prime is 10120130971. The next prime is 10120131023. The reversal of 10120131020 is 2013102101.

It is a junction number, because it is equal to n+sod(n) for n = 10120130992 and 10120131010.

It is not an unprimeable number, because it can be changed into a prime (10120131023) 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, 697565 + ... + 711924.

It is an arithmetic number, because the mean of its divisors is an integer number (887978700).

Almost surely, 210120131020 is an apocalyptic number.

10120131020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10120131020 is an abundant number, since it is smaller than the sum of its proper divisors (11191357780).

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

10120131020 is a wasteful number, since it uses less digits than its factorization.

10120131020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409857 (or 1409855 counting only the distinct ones).

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

Adding to 10120131020 its reverse (2013102101), we get a palindrome (12133233121).

The spelling of 10120131020 in words is "ten billion, one hundred twenty million, one hundred thirty-one thousand, twenty".

Divisors: 1 2 4 5 10 20 359 718 1436 1795 3590 7180 1409489 2818978 5637956 7047445 14094890 28189780 506006551 1012013102 2024026204 2530032755 5060065510 10120131020