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126648868 = 2273433729
BaseRepresentation
bin1111000110010…
…00001000100100
322211022102120211
413203020020210
5224410230433
620322305204
73065332453
oct743101044
9284272524
10126648868
1165543195
12364b8204
1320314378
1412b6ab9a
15b1ba8cd
hex78c8224

126648868 has 12 divisors (see below), whose sum is σ = 224672140. Its totient is φ = 62456832.

The previous prime is 126648839. The next prime is 126648883. The reversal of 126648868 is 868846621.

It can be written as a sum of positive squares in 2 ways, for example, as 40678884 + 85969984 = 6378^2 + 9272^2 .

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, 216573 + ... + 217156.

Almost surely, 2126648868 is an apocalyptic number.

It is an amenable number.

126648868 is a deficient number, since it is larger than the sum of its proper divisors (98023272).

126648868 is a wasteful number, since it uses less digits than its factorization.

126648868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433806 (or 433804 counting only the distinct ones).

The product of its digits is 884736, while the sum is 49.

The square root of 126648868 is about 11253.8379231265. The cubic root of 126648868 is about 502.1888941679.

The spelling of 126648868 in words is "one hundred twenty-six million, six hundred forty-eight thousand, eight hundred sixty-eight".

Divisors: 1 2 4 73 146 292 433729 867458 1734916 31662217 63324434 126648868