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485890916608 = 2817113988033
BaseRepresentation
bin1110001001000010101…
…10110000000100000000
31201110011120111000101101
413010201112300010000
530430101033312413
61011114252344144
750050554434416
oct7044126600400
91643146430341
10485890916608
111780798342a9
127a203a75054
1336a86067b16
14197354732b6
15c98c153edd
hex71215b0100

485890916608 has 72 divisors (see below), whose sum is σ = 1036024787448. Its totient is φ = 226630828032.

The previous prime is 485890916593. The next prime is 485890916629. The reversal of 485890916608 is 806619098584.

It can be written as a sum of positive squares in 4 ways, for example, as 129968902144 + 355922014464 = 360512^2 + 596592^2 .

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a self number, because there is not a number n which added to its sum of digits gives 485890916608.

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, 2241 + ... + 985792.

It is an arithmetic number, because the mean of its divisors is an integer number (14389233159).

Almost surely, 2485890916608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 485890916608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (518012393724).

485890916608 is an abundant number, since it is smaller than the sum of its proper divisors (550133870840).

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

485890916608 is a wasteful number, since it uses less digits than its factorization.

485890916608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988179 (or 988165 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 64.

The spelling of 485890916608 in words is "four hundred eighty-five billion, eight hundred ninety million, nine hundred sixteen thousand, six hundred eight".

Divisors: 1 2 4 8 16 17 32 34 64 68 113 128 136 226 256 272 452 544 904 1088 1808 1921 2176 3616 3842 4352 7232 7684 14464 15368 28928 30736 61472 122944 245888 491776 988033 1976066 3952132 7904264 15808528 16796561 31617056 33593122 63234112 67186244 111647729 126468224 134372488 223295458 252936448 268744976 446590916 537489952 893181832 1074979904 1786363664 1898011393 2149959808 3572727328 3796022786 4299919616 7145454656 7592045572 14290909312 15184091144 28581818624 30368182288 60736364576 121472729152 242945458304 485890916608