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71207241942 = 23109710818481
BaseRepresentation
bin100001001010001001…
…0000100100011010110
320210210112222200111010
41002110102010203112
52131313023220232
652413454153050
75100403366314
oct1022422044326
9223715880433
1071207241942
11282206a4891
12119731b2786
13693a5a61b5
1436370ad0b4
151cbb5cc0cc
hex10944848d6

71207241942 has 16 divisors (see below), whose sum is σ = 142544318832. Its totient is φ = 23714108160.

The previous prime is 71207241907. The next prime is 71207241979. The reversal of 71207241942 is 24914270217.

It is a self number, because there is not a number n which added to its sum of digits gives 71207241942.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5402659 + ... + 5415822.

It is an arithmetic number, because the mean of its divisors is an integer number (8909019927).

Almost surely, 271207241942 is an apocalyptic number.

71207241942 is an abundant number, since it is smaller than the sum of its proper divisors (71337076890).

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

71207241942 is a wasteful number, since it uses less digits than its factorization.

71207241942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10819583.

The product of its (nonzero) digits is 56448, while the sum is 39.

The spelling of 71207241942 in words is "seventy-one billion, two hundred seven million, two hundred forty-one thousand, nine hundred forty-two".

Divisors: 1 2 3 6 1097 2194 3291 6582 10818481 21636962 32455443 64910886 11867873657 23735747314 35603620971 71207241942