Search a number
-
+
13120479 = 325924709
BaseRepresentation
bin110010000011…
…001111011111
3220200120220200
4302003033133
511324323404
61145114543
7216344061
oct62031737
926616820
1013120479
117451679
124488a53
132944cc8
141a57731
151242839
hexc833df

13120479 has 12 divisors (see below), whose sum is σ = 19273800. Its totient is φ = 8598384.

The previous prime is 13120427. The next prime is 13120483. The reversal of 13120479 is 97402131.

It is not a de Polignac number, because 13120479 - 27 = 13120351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13120489) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11824 + ... + 12885.

It is an arithmetic number, because the mean of its divisors is an integer number (1606150).

Almost surely, 213120479 is an apocalyptic number.

13120479 is a deficient number, since it is larger than the sum of its proper divisors (6153321).

13120479 is a wasteful number, since it uses less digits than its factorization.

13120479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24774 (or 24771 counting only the distinct ones).

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

The square root of 13120479 is about 3622.2201755277. The cubic root of 13120479 is about 235.8576118490.

The spelling of 13120479 in words is "thirteen million, one hundred twenty thousand, four hundred seventy-nine".

Divisors: 1 3 9 59 177 531 24709 74127 222381 1457831 4373493 13120479