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13472901 = 3213115153
BaseRepresentation
bin110011011001…
…010010000101
3221100111100100
4303121102011
511422113101
61200434313
7222342411
oct63312205
927314310
1013472901
117672432
124618999
132a39540
141b09d41
1512b1e86
hexcd9485

13472901 has 12 divisors (see below), whose sum is σ = 20958028. Its totient is φ = 8290944.

The previous prime is 13472873. The next prime is 13472903. The reversal of 13472901 is 10927431.

It can be written as a sum of positive squares in 2 ways, for example, as 5904900 + 7568001 = 2430^2 + 2751^2 .

It is not a de Polignac number, because 13472901 - 210 = 13471877 is a prime.

It is a super-2 number, since 2×134729012 = 363038122711602, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13472903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57460 + ... + 57693.

Almost surely, 213472901 is an apocalyptic number.

It is an amenable number.

13472901 is a deficient number, since it is larger than the sum of its proper divisors (7485127).

13472901 is a wasteful number, since it uses less digits than its factorization.

13472901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115172 (or 115169 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 13472901 is about 3670.5450548931. The cubic root of 13472901 is about 237.9507289197.

The spelling of 13472901 in words is "thirteen million, four hundred seventy-two thousand, nine hundred one".

Divisors: 1 3 9 13 39 117 115153 345459 1036377 1496989 4490967 13472901