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65408970286072 = 2371768706901561
BaseRepresentation
bin11101101111101001101100…
…11100000110001111111000
322120121000222121020202112201
432313310312130012033320
532033130032343123242
6351040244403315544
716530433154655250
oct1667646634061770
9276530877222481
1065408970286072
1119928874577726
12740484397bbb4
132a6606882936a
141221b4d760960
1578668647a4b7
hex3b7d367063f8

65408970286072 has 32 divisors (see below), whose sum is σ = 148406907373920. Its totient is φ = 26383450199040.

The previous prime is 65408970286001. The next prime is 65408970286097. The reversal of 65408970286072 is 27068207980456.

It is a junction number, because it is equal to n+sod(n) for n = 65408970285995 and 65408970286013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34353449829 + ... + 34353451732.

It is an arithmetic number, because the mean of its divisors is an integer number (4637715855435).

Almost surely, 265408970286072 is an apocalyptic number.

It is an amenable number.

65408970286072 is an abundant number, since it is smaller than the sum of its proper divisors (82997937087848).

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

65408970286072 is a wasteful number, since it uses less digits than its factorization.

65408970286072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68706901591 (or 68706901587 counting only the distinct ones).

The product of its (nonzero) digits is 81285120, while the sum is 64.

The spelling of 65408970286072 in words is "sixty-five trillion, four hundred eight billion, nine hundred seventy million, two hundred eighty-six thousand, seventy-two".

Divisors: 1 2 4 7 8 14 17 28 34 56 68 119 136 238 476 952 68706901561 137413803122 274827606244 480948310927 549655212488 961896621854 1168017326537 1923793243708 2336034653074 3847586487416 4672069306148 8176121285759 9344138612296 16352242571518 32704485143036 65408970286072