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13051424 = 25407857
BaseRepresentation
bin110001110010…
…011000100000
3220120002012002
4301302120200
511320121144
61143423132
7215635541
oct61623040
926502162
1013051424
117404801
124454aa8
13291c749
141a3a4c8
15122c14e
hexc72620

13051424 has 12 divisors (see below), whose sum is σ = 25695054. Its totient is φ = 6525696.

The previous prime is 13051411. The next prime is 13051453. The reversal of 13051424 is 42415031.

It can be written as a sum of positive squares in only one way, i.e., 10679824 + 2371600 = 3268^2 + 1540^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13051396 and 13051405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203897 + ... + 203960.

Almost surely, 213051424 is an apocalyptic number.

It is an amenable number.

13051424 is a deficient number, since it is larger than the sum of its proper divisors (12643630).

13051424 is an equidigital number, since it uses as much as digits as its factorization.

13051424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407867 (or 407859 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 13051424 is about 3612.6754628668. The cubic root of 13051424 is about 235.4430994136.

Adding to 13051424 its reverse (42415031), we get a palindrome (55466455).

The spelling of 13051424 in words is "thirteen million, fifty-one thousand, four hundred twenty-four".

Divisors: 1 2 4 8 16 32 407857 815714 1631428 3262856 6525712 13051424