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14887213 = 111353383
BaseRepresentation
bin111000110010…
…100100101101
31001000100102021
4320302210231
512302342323
61251030141
7240352645
oct70624455
931010367
1014887213
118448a90
124b9b351
133113203
141d97525
15149105d
hexe3292d

14887213 has 4 divisors (see below), whose sum is σ = 16240608. Its totient is φ = 13533820.

The previous prime is 14887181. The next prime is 14887217. The reversal of 14887213 is 31278841.

It is a happy number.

14887213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31278841 = 112843531.

It is a cyclic number.

It is not a de Polignac number, because 14887213 - 25 = 14887181 is a prime.

It is a super-2 number, since 2×148872132 = 443258221814738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14887217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 676681 + ... + 676702.

It is an arithmetic number, because the mean of its divisors is an integer number (4060152).

Almost surely, 214887213 is an apocalyptic number.

It is an amenable number.

14887213 is a deficient number, since it is larger than the sum of its proper divisors (1353395).

14887213 is a wasteful number, since it uses less digits than its factorization.

14887213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353394.

The product of its digits is 10752, while the sum is 34.

The square root of 14887213 is about 3858.3951326944. The cubic root of 14887213 is about 246.0015257578.

The spelling of 14887213 in words is "fourteen million, eight hundred eighty-seven thousand, two hundred thirteen".

Divisors: 1 11 1353383 14887213