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13827213 = 331792861
BaseRepresentation
bin110100101111…
…110010001101
3222000111101000
4310233302031
512014432323
61212210513
7225346401
oct64576215
928014330
1013827213
117894654
124769a39
132b318aa
141b9d101
151331e43
hexd2fc8d

13827213 has 16 divisors (see below), whose sum is σ = 20606400. Its totient is φ = 9163440.

The previous prime is 13827211. The next prime is 13827217. The reversal of 13827213 is 31272831.

It is not a de Polignac number, because 13827213 - 21 = 13827211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13827211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3403 + ... + 6263.

It is an arithmetic number, because the mean of its divisors is an integer number (1287900).

Almost surely, 213827213 is an apocalyptic number.

It is an amenable number.

13827213 is a deficient number, since it is larger than the sum of its proper divisors (6779187).

13827213 is a wasteful number, since it uses less digits than its factorization.

13827213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3049 (or 3043 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 13827213 is about 3718.4960669604. The cubic root of 13827213 is about 240.0185923097.

The spelling of 13827213 in words is "thirteen million, eight hundred twenty-seven thousand, two hundred thirteen".

Divisors: 1 3 9 27 179 537 1611 2861 4833 8583 25749 77247 512119 1536357 4609071 13827213