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20037132740 = 2251001856637
BaseRepresentation
bin10010101010010011…
…100110000111000100
31220201102101210210102
4102222103212013010
5312014001221430
613112133143232
71306352550422
oct225223460704
956642353712
1020037132740
118552491439
123a7248ab18
131b742a9381
14d811d0112
157c4153345
hex4aa4e61c4

20037132740 has 12 divisors (see below), whose sum is σ = 42077978796. Its totient is φ = 8014853088.

The previous prime is 20037132701. The next prime is 20037132743. The reversal of 20037132740 is 4723173002.

It can be written as a sum of positive squares in 2 ways, for example, as 9107266624 + 10929866116 = 95432^2 + 104546^2 .

It is not an unprimeable number, because it can be changed into a prime (20037132743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500928299 + ... + 500928338.

It is an arithmetic number, because the mean of its divisors is an integer number (3506498233).

Almost surely, 220037132740 is an apocalyptic number.

20037132740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20037132740 is an abundant number, since it is smaller than the sum of its proper divisors (22040846056).

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

20037132740 is a wasteful number, since it uses less digits than its factorization.

20037132740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001856646 (or 1001856644 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 29.

The spelling of 20037132740 in words is "twenty billion, thirty-seven million, one hundred thirty-two thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 1001856637 2003713274 4007426548 5009283185 10018566370 20037132740