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85161376416 = 2531635442317
BaseRepresentation
bin100111101010000000…
…0110111101010100000
322010211001011011101110
41033110000313222200
52343402303021131
6103042251503320
76103243520154
oct1172400675240
9263731134343
1085161376416
1133131416626
1214608457b40
1380525467bc
14419c447064
1523366a0646
hex13d4037aa0

85161376416 has 48 divisors (see below), whose sum is σ = 224920118304. Its totient is φ = 28212966144.

The previous prime is 85161376403. The next prime is 85161376459. The reversal of 85161376416 is 61467316158.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 2705511 + ... + 2736806.

It is an arithmetic number, because the mean of its divisors is an integer number (4685835798).

Almost surely, 285161376416 is an apocalyptic number.

It is an amenable number.

85161376416 is an abundant number, since it is smaller than the sum of its proper divisors (139758741888).

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

85161376416 is a wasteful number, since it uses less digits than its factorization.

85161376416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5442493 (or 5442485 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

The spelling of 85161376416 in words is "eighty-five billion, one hundred sixty-one million, three hundred seventy-six thousand, four hundred sixteen".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 163 326 489 652 978 1304 1956 2608 3912 5216 7824 15648 5442317 10884634 16326951 21769268 32653902 43538536 65307804 87077072 130615608 174154144 261231216 522462432 887097671 1774195342 2661293013 3548390684 5322586026 7096781368 10645172052 14193562736 21290344104 28387125472 42580688208 85161376416