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634231144 = 23285727749
BaseRepresentation
bin100101110011011…
…001100101101000
31122012102021120101
4211303121211220
52244330344034
6142533435144
721500606251
oct4563314550
91565367511
10634231144
112a6009278
1215849bab4
13a1522701
1460337b28
153aa30514
hex25cd9968

634231144 has 16 divisors (see below), whose sum is σ = 1189642500. Its totient is φ = 316993152.

The previous prime is 634231133. The next prime is 634231163. The reversal of 634231144 is 441132436.

634231144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 633528900 + 702244 = 25170^2 + 838^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8982 + ... + 36730.

Almost surely, 2634231144 is an apocalyptic number.

It is an amenable number.

634231144 is a deficient number, since it is larger than the sum of its proper divisors (555411356).

634231144 is a wasteful number, since it uses less digits than its factorization.

634231144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30612 (or 30608 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

The square root of 634231144 is about 25183.9461562321. The cubic root of 634231144 is about 859.1767604253.

The spelling of 634231144 in words is "six hundred thirty-four million, two hundred thirty-one thousand, one hundred forty-four".

Divisors: 1 2 4 8 2857 5714 11428 22856 27749 55498 110996 221992 79278893 158557786 317115572 634231144