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13400626 = 253126421
BaseRepresentation
bin110011000111…
…101000110010
3221012211012111
4303013220302
511412310001
61155115534
7221621611
oct63075062
927184174
1013400626
1176230a8
1245a2baa
132a12685
141acb878
15129a851
hexcc7a32

13400626 has 8 divisors (see below), whose sum is σ = 20480364. Its totient is φ = 6573840.

The previous prime is 13400591. The next prime is 13400633. The reversal of 13400626 is 62600431.

13400626 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 12496225 + 904401 = 3535^2 + 951^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 13400597 and 13400606.

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, 63105 + ... + 63316.

Almost surely, 213400626 is an apocalyptic number.

13400626 is a deficient number, since it is larger than the sum of its proper divisors (7079738).

13400626 is a wasteful number, since it uses less digits than its factorization.

13400626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126476.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 13400626 is about 3660.6865476301. The cubic root of 13400626 is about 237.5244724551.

The spelling of 13400626 in words is "thirteen million, four hundred thousand, six hundred twenty-six".

Divisors: 1 2 53 106 126421 252842 6700313 13400626