Search a number
-
+
13270279 = 119712437
BaseRepresentation
bin110010100111…
…110100000111
3220222012101211
4302213310013
511344122104
61152232251
7220536601
oct62476407
926865354
1013270279
117544180
12453b687
132998249
141a96171
151271e04
hexca7d07

13270279 has 8 divisors (see below), whose sum is σ = 14627088. Its totient is φ = 11938560.

The previous prime is 13270277. The next prime is 13270291. The reversal of 13270279 is 97207231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13270279 - 21 = 13270277 is a prime.

It is a super-2 number, since 2×132702792 = 352200609475682, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13270279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13270277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5152 + ... + 7285.

It is an arithmetic number, because the mean of its divisors is an integer number (1828386).

Almost surely, 213270279 is an apocalyptic number.

13270279 is a deficient number, since it is larger than the sum of its proper divisors (1356809).

13270279 is a wasteful number, since it uses less digits than its factorization.

13270279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12545.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 13270279 is about 3642.8394145227. The cubic root of 13270279 is about 236.7518336167.

The spelling of 13270279 in words is "thirteen million, two hundred seventy thousand, two hundred seventy-nine".

Divisors: 1 11 97 1067 12437 136807 1206389 13270279