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20712455710 = 256773423481
BaseRepresentation
bin10011010010100011…
…101111111000011110
31222110111010202202021
4103102203233320132
5314404342040320
613303135450354
71332162653152
oct232243577036
958414122667
1020712455710
1188697065a1
1240206869ba
131c5118856b
141006b83062
1581359ddaa
hex4d28efe1e

20712455710 has 32 divisors (see below), whose sum is σ = 38357305632. Its totient is φ = 8049507840.

The previous prime is 20712455707. The next prime is 20712455711. The reversal of 20712455710 is 1755421702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20712455711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162831 + ... + 260650.

It is an arithmetic number, because the mean of its divisors is an integer number (1198665801).

Almost surely, 220712455710 is an apocalyptic number.

20712455710 is a deficient number, since it is larger than the sum of its proper divisors (17644849922).

20712455710 is a wasteful number, since it uses less digits than its factorization.

20712455710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423628.

The product of its (nonzero) digits is 19600, while the sum is 34.

The spelling of 20712455710 in words is "twenty billion, seven hundred twelve million, four hundred fifty-five thousand, seven hundred ten".

Divisors: 1 2 5 10 67 73 134 146 335 365 670 730 4891 9782 24455 48910 423481 846962 2117405 4234810 28373227 30914113 56746454 61828226 141866135 154570565 283732270 309141130 2071245571 4142491142 10356227855 20712455710