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13472941 = 31434611
BaseRepresentation
bin110011011001…
…010010101101
3221100111101211
4303121102231
511422113231
61200434421
7222342466
oct63312255
927314354
1013472941
117672469
124618a11
132a39571
141b09d6d
1512b1eb1
hexcd94ad

13472941 has 4 divisors (see below), whose sum is σ = 13907584. Its totient is φ = 13038300.

The previous prime is 13472939. The next prime is 13472947. The reversal of 13472941 is 14927431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14927431 = 29514739.

It is a cyclic number.

It is not a de Polignac number, because 13472941 - 21 = 13472939 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 434611 = 13472941 / (1 + 3 + 4 + 7 + 2 + 9 + 4 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13472947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217275 + ... + 217336.

It is an arithmetic number, because the mean of its divisors is an integer number (3476896).

Almost surely, 213472941 is an apocalyptic number.

It is an amenable number.

13472941 is a deficient number, since it is larger than the sum of its proper divisors (434643).

13472941 is an equidigital number, since it uses as much as digits as its factorization.

13472941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434642.

The product of its digits is 6048, while the sum is 31.

The square root of 13472941 is about 3670.5505036711. The cubic root of 13472941 is about 237.9509644052.

The spelling of 13472941 in words is "thirteen million, four hundred seventy-two thousand, nine hundred forty-one".

Divisors: 1 31 434611 13472941