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13214756 = 2213125219
BaseRepresentation
bin110010011010…
…010000100100
3220212101020102
4302122100210
511340333011
61151123232
7220215662
oct62322044
926771212
1013214756
117506495
124513518
132978ba9
141a7dc32
15126073b
hexc9a424

13214756 has 12 divisors (see below), whose sum is σ = 23303280. Its totient is φ = 6556680.

The previous prime is 13214743. The next prime is 13214767. The reversal of 13214756 is 65741231.

It is a super-2 number, since 2×132147562 = 349259552279072, which contains 22 as substring.

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, 12086 + ... + 13133.

It is an arithmetic number, because the mean of its divisors is an integer number (1941940).

Almost surely, 213214756 is an apocalyptic number.

It is an amenable number.

13214756 is a deficient number, since it is larger than the sum of its proper divisors (10088524).

13214756 is a wasteful number, since it uses less digits than its factorization.

13214756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25354 (or 25352 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 13214756 is about 3635.2105853719. The cubic root of 13214756 is about 236.4211812374.

Adding to 13214756 its reverse (65741231), we get a palindrome (78955987).

The spelling of 13214756 in words is "thirteen million, two hundred fourteen thousand, seven hundred fifty-six".

Divisors: 1 2 4 131 262 524 25219 50438 100876 3303689 6607378 13214756