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20120711484 = 22315531079669
BaseRepresentation
bin10010101111010010…
…011011000100111100
31220221020200001021110
4102233102123010330
5312201400231414
613124320402020
71311416140266
oct225722330474
956836601243
1020120711484
118595687385
123a96476310
131b886c0653
14d8c348b36
157cb662459
hex4af49b13c

20120711484 has 24 divisors (see below), whose sum is σ = 46978601040. Its totient is φ = 6702578944.

The previous prime is 20120711483. The next prime is 20120711491. The reversal of 20120711484 is 48411702102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120711483) 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, 521199 + ... + 558470.

It is an arithmetic number, because the mean of its divisors is an integer number (1957441710).

Almost surely, 220120711484 is an apocalyptic number.

It is an amenable number.

20120711484 is an abundant number, since it is smaller than the sum of its proper divisors (26857889556).

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

20120711484 is a wasteful number, since it uses less digits than its factorization.

20120711484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081229 (or 1081227 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

The spelling of 20120711484 in words is "twenty billion, one hundred twenty million, seven hundred eleven thousand, four hundred eighty-four".

Divisors: 1 2 3 4 6 12 1553 3106 4659 6212 9318 18636 1079669 2159338 3239007 4318676 6478014 12956028 1676725957 3353451914 5030177871 6706903828 10060355742 20120711484