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6164260640 = 25593741117
BaseRepresentation
bin1011011110110101…
…10010011100100000
3120220121010212220122
411233122302130200
5100111022320030
62455401255412
7305520231236
oct55732623440
916817125818
106164260640
11268362328a
121240494568
1377311b905
1442696a956
152612828e5
hex16f6b2720

6164260640 has 48 divisors (see below), whose sum is σ = 14578962552. Its totient is φ = 2463012864.

The previous prime is 6164260549. The next prime is 6164260679. The reversal of 6164260640 is 460624616.

It can be written as a sum of positive squares in 4 ways, for example, as 3947357584 + 2216903056 = 62828^2 + 47084^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6164260640.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129362 + ... + 170478.

Almost surely, 26164260640 is an apocalyptic number.

It is an amenable number.

6164260640 is an abundant number, since it is smaller than the sum of its proper divisors (8414701912).

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

6164260640 is a wasteful number, since it uses less digits than its factorization.

6164260640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42069 (or 42061 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 6164260640 is about 78512.8055797269. The cubic root of 6164260640 is about 1833.5538294210.

The spelling of 6164260640 in words is "six billion, one hundred sixty-four million, two hundred sixty thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 937 1874 3748 4685 7496 9370 14992 18740 29984 37480 41117 74960 82234 149920 164468 205585 328936 411170 657872 822340 1315744 1644680 3289360 6578720 38526629 77053258 154106516 192633145 308213032 385266290 616426064 770532580 1232852128 1541065160 3082130320 6164260640