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2668825408 = 2697429901
BaseRepresentation
bin1001111100010011…
…0000101101000000
320212222212101012111
42133010300231000
520431204403113
61120454105104
7123064433044
oct23704605500
96788771174
102668825408
11114a534037
1262594b194
13336bbcc42
141b463a024
1510947813d
hex9f130b40

2668825408 has 28 divisors (see below), whose sum is σ = 5350560292. Its totient is φ = 1320652800.

The previous prime is 2668825363. The next prime is 2668825459. The reversal of 2668825408 is 8045288662.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1507924224 + 1160901184 = 38832^2 + 34072^2 .

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 3 ways as a sum of consecutive naturals, for example, 208743 + ... + 221158.

It is an arithmetic number, because the mean of its divisors is an integer number (191091439).

Almost surely, 22668825408 is an apocalyptic number.

It is an amenable number.

2668825408 is an abundant number, since it is smaller than the sum of its proper divisors (2681734884).

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

2668825408 is an equidigital number, since it uses as much as digits as its factorization.

2668825408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430010 (or 430000 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 49.

The square root of 2668825408 is about 51660.6756440525. The cubic root of 2668825408 is about 1387.0966446828.

The spelling of 2668825408 in words is "two billion, six hundred sixty-eight million, eight hundred twenty-five thousand, four hundred eight".

Divisors: 1 2 4 8 16 32 64 97 194 388 776 1552 3104 6208 429901 859802 1719604 3439208 6878416 13756832 27513664 41700397 83400794 166801588 333603176 667206352 1334412704 2668825408