Search a number
-
+
13279056 = 243739521
BaseRepresentation
bin110010101001…
…111101010000
3220222122102220
4302221331100
511344412211
61152341040
7220604310
oct62517520
926878386
1013279056
11754a82a
124544780
13299c23b
141a99440
151274806
hexca9f50

13279056 has 40 divisors (see below), whose sum is σ = 39205824. Its totient is φ = 3793920.

The previous prime is 13279033. The next prime is 13279061. The reversal of 13279056 is 65097231.

13279056 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×132790562 = 352666656502272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19425 + ... + 20096.

Almost surely, 213279056 is an apocalyptic number.

13279056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13279056 is an abundant number, since it is smaller than the sum of its proper divisors (25926768).

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

13279056 is a wasteful number, since it uses less digits than its factorization.

13279056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39539 (or 39533 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 13279056 is about 3644.0439075291. The cubic root of 13279056 is about 236.8040182238.

The spelling of 13279056 in words is "thirteen million, two hundred seventy-nine thousand, fifty-six".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 168 336 39521 79042 118563 158084 237126 276647 316168 474252 553294 632336 829941 948504 1106588 1659882 1897008 2213176 3319764 4426352 6639528 13279056