Search a number
-
+
13120448 = 261118637
BaseRepresentation
bin110010000011…
…001111000000
3220200120212112
4302003033000
511324323243
61145114452
7216344015
oct62031700
926616775
1013120448
117451650
124488a28
132944ca3
141a5770c
151242818
hexc833c0

13120448 has 28 divisors (see below), whose sum is σ = 28404312. Its totient is φ = 5963520.

The previous prime is 13120427. The next prime is 13120483. The reversal of 13120448 is 84402131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8615 + ... + 10022.

Almost surely, 213120448 is an apocalyptic number.

It is an amenable number.

13120448 is an abundant number, since it is smaller than the sum of its proper divisors (15283864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13120448 is a wasteful number, since it uses less digits than its factorization.

13120448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18660 (or 18650 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 13120448 is about 3622.2158963817. The cubic root of 13120448 is about 235.8574260938.

Adding to 13120448 its reverse (84402131), we get a palindrome (97522579).

The spelling of 13120448 in words is "thirteen million, one hundred twenty thousand, four hundred forty-eight".

Divisors: 1 2 4 8 11 16 22 32 44 64 88 176 352 704 18637 37274 74548 149096 205007 298192 410014 596384 820028 1192768 1640056 3280112 6560224 13120448