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20507106712 = 233151181349
BaseRepresentation
bin10011000110010100…
…011001110110011000
31221221011201221212211
4103012110121312120
5313444304403322
613230522244504
71324120350061
oct230624316630
957834657784
1020507106712
1187737aa884
123b83956734
131c1a77a691
14dc77ab568
15800539b77
hex4c6519d98

20507106712 has 16 divisors (see below), whose sum is σ = 38452518000. Its totient is φ = 10253101920.

The previous prime is 20507106707. The next prime is 20507106743. The reversal of 20507106712 is 21760170502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211414 + ... + 292762.

It is an arithmetic number, because the mean of its divisors is an integer number (2403282375).

Almost surely, 220507106712 is an apocalyptic number.

It is an amenable number.

20507106712 is a deficient number, since it is larger than the sum of its proper divisors (17945411288).

20507106712 is a wasteful number, since it uses less digits than its factorization.

20507106712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112866 (or 112862 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 31.

The spelling of 20507106712 in words is "twenty billion, five hundred seven million, one hundred six thousand, seven hundred twelve".

Divisors: 1 2 4 8 31511 63022 81349 126044 162698 252088 325396 650792 2563388339 5126776678 10253553356 20507106712