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8471719412 = 2213172577977
BaseRepresentation
bin1111110001111010…
…00010110111110100
3210212102000221021122
413320331002313310
5114322230010122
63520350203112
7416636266262
oct77075026764
923772027248
108471719412
113658079202
1217851b3498
13a501a5a30
145a51bb432
15348b29142
hex1f8f42df4

8471719412 has 72 divisors (see below), whose sum is σ = 17007134424. Its totient is φ = 3669884928.

The previous prime is 8471719397. The next prime is 8471719441. The reversal of 8471719412 is 2149171748.

It can be written as a sum of positive squares in 12 ways, for example, as 852873616 + 7618845796 = 29204^2 + 87286^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8670668 + ... + 8671644.

Almost surely, 28471719412 is an apocalyptic number.

It is an amenable number.

8471719412 is an abundant number, since it is smaller than the sum of its proper divisors (8535415012).

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

8471719412 is a wasteful number, since it uses less digits than its factorization.

8471719412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1605 (or 1586 counting only the distinct ones).

The product of its digits is 112896, while the sum is 44.

The square root of 8471719412 is about 92041.9437647858. The cubic root of 8471719412 is about 2038.5616713111.

The spelling of 8471719412 in words is "eight billion, four hundred seventy-one million, seven hundred nineteen thousand, four hundred twelve".

Divisors: 1 2 4 13 17 26 34 52 68 221 289 442 577 578 884 977 1154 1156 1954 2308 3757 3908 7501 7514 9809 12701 15002 15028 16609 19618 25402 30004 33218 39236 50804 66436 127517 166753 215917 255034 282353 333506 431834 510068 563729 564706 667012 863668 1127458 1129412 2167789 2254916 3670589 4335578 7328477 7341178 8671156 9583393 14656954 14682356 19166786 29313908 38333572 124584109 162917681 249168218 325835362 498336436 651670724 2117929853 4235859706 8471719412