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71145406462711 = 72310738310782971
BaseRepresentation
bin10000001011010011010100…
…101011011111101011110111
3100022220102201200221211121111
4100023103110223133223313
533311121243023301321
6411151425403055451
720662041331645240
oct2013232453375367
9308812650854544
1071145406462711
112073a663211659
127b90558811587
133090ca1988199
14137d655565cc7
158359c69235e1
hex40b4d4adfaf7

71145406462711 has 32 divisors (see below), whose sum is σ = 85860751638528. Its totient is φ = 57634370803680.

The previous prime is 71145406462709. The next prime is 71145406462723. The reversal of 71145406462711 is 11726460454117.

It is a cyclic number.

It is not a de Polignac number, because 71145406462711 - 21 = 71145406462709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71145401462711) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1206456 + ... + 11989426.

It is an arithmetic number, because the mean of its divisors is an integer number (2683148488704).

Almost surely, 271145406462711 is an apocalyptic number.

71145406462711 is a deficient number, since it is larger than the sum of its proper divisors (14715345175817).

71145406462711 is a wasteful number, since it uses less digits than its factorization.

71145406462711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10783491.

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 71145406462711 in words is "seventy-one trillion, one hundred forty-five billion, four hundred six million, four hundred sixty-two thousand, seven hundred eleven".

Divisors: 1 7 23 107 161 383 749 2461 2681 8809 17227 40981 61663 286867 942563 6597941 10782971 75480797 248008333 1153777897 1736058331 4129877893 8076445279 26536891631 28909145251 94987191539 185758241417 441896934551 664910340773 3093278541857 10163629494673 71145406462711