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13207941 = 34163061
BaseRepresentation
bin110010011000…
…100110000101
3220212000220000
4302120212011
511340123231
61151031513
7220160055
oct62304605
926760800
1013207941
11750135a
12450b599
132975a66
141a7b565
15125d6e6
hexc98985

13207941 has 10 divisors (see below), whose sum is σ = 19730502. Its totient is φ = 8805240.

The previous prime is 13207921. The next prime is 13207949. The reversal of 13207941 is 14970231.

It can be written as a sum of positive squares in only one way, i.e., 6812100 + 6395841 = 2610^2 + 2529^2 .

It is not a de Polignac number, because 13207941 - 26 = 13207877 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13207949) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 81450 + ... + 81611.

Almost surely, 213207941 is an apocalyptic number.

It is an amenable number.

13207941 is a deficient number, since it is larger than the sum of its proper divisors (6522561).

13207941 is an equidigital number, since it uses as much as digits as its factorization.

13207941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163073 (or 163064 counting only the distinct ones).

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

The square root of 13207941 is about 3634.2731047625. The cubic root of 13207941 is about 236.3805325514.

It can be divided in two parts, 1320 and 7941, that added together give a cube (9261 = 213).

The spelling of 13207941 in words is "thirteen million, two hundred seven thousand, nine hundred forty-one".

Divisors: 1 3 9 27 81 163061 489183 1467549 4402647 13207941