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20127907704 = 2331733483937
BaseRepresentation
bin10010101111101101…
…110111111101111000
31220221202012122122010
4102233231313331320
5312210221021304
613125134525520
71311534251442
oct225755677570
956852178563
1020127907704
118599751a73
123a989668a0
131b8a03cc78
14d8d29d492
157cc0d4789
hex4afb77f78

20127907704 has 32 divisors (see below), whose sum is σ = 50348909520. Its totient is φ = 6705417216.

The previous prime is 20127907703. The next prime is 20127907717. The reversal of 20127907704 is 40770972102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20127907703) 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, 200377 + ... + 283560.

Almost surely, 220127907704 is an apocalyptic number.

20127907704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20127907704 is an abundant number, since it is smaller than the sum of its proper divisors (30221001816).

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

20127907704 is a wasteful number, since it uses less digits than its factorization.

20127907704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485679 (or 485675 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 39.

The spelling of 20127907704 in words is "twenty billion, one hundred twenty-seven million, nine hundred seven thousand, seven hundred four".

Divisors: 1 2 3 4 6 8 12 24 1733 3466 5199 6932 10398 13864 20796 41592 483937 967874 1451811 1935748 2903622 3871496 5807244 11614488 838662821 1677325642 2515988463 3354651284 5031976926 6709302568 10063953852 20127907704