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13080207 = 372101881
BaseRepresentation
bin110001111001…
…011010001111
3220121112200010
4301321122033
511322031312
61144204303
7216115500
oct61713217
926545603
1013080207
117424398
124469693
13292c88a
141a46ba7
15123593c
hexc7968f

13080207 has 24 divisors (see below), whose sum is σ = 20511792. Its totient is φ = 7392000.

The previous prime is 13080187. The next prime is 13080211. The reversal of 13080207 is 70208031.

13080207 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13080207 - 26 = 13080143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13080257) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14407 + ... + 15287.

It is an arithmetic number, because the mean of its divisors is an integer number (854658).

Almost surely, 213080207 is an apocalyptic number.

13080207 is a deficient number, since it is larger than the sum of its proper divisors (7431585).

13080207 is a wasteful number, since it uses less digits than its factorization.

13080207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999 (or 992 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 13080207 is about 3616.6568817072. The cubic root of 13080207 is about 235.6160507358.

Adding to 13080207 its reverse (70208031), we get a palindrome (83288238).

The spelling of 13080207 in words is "thirteen million, eighty thousand, two hundred seven".

Divisors: 1 3 7 21 49 101 147 303 707 881 2121 2643 4949 6167 14847 18501 43169 88981 129507 266943 622867 1868601 4360069 13080207