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13214072 = 2343107359
BaseRepresentation
bin110010011010…
…000101111000
3220212100022002
4302122011320
511340322242
61151120132
7220213664
oct62320570
926770262
1013214072
117505a23
124513048
1329787a1
141a7d8a4
151260432
hexc9a178

13214072 has 32 divisors (see below), whose sum is σ = 25660800. Its totient is φ = 6375264.

The previous prime is 13214057. The next prime is 13214081. The reversal of 13214072 is 27041231.

It is a super-2 number, since 2×132140722 = 349223397642368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36629 + ... + 36987.

It is an arithmetic number, because the mean of its divisors is an integer number (801900).

Almost surely, 213214072 is an apocalyptic number.

It is an amenable number.

13214072 is a deficient number, since it is larger than the sum of its proper divisors (12446728).

13214072 is a wasteful number, since it uses less digits than its factorization.

13214072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515 (or 511 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 13214072 is about 3635.1165043228. The cubic root of 13214072 is about 236.4171020883.

The spelling of 13214072 in words is "thirteen million, two hundred fourteen thousand, seventy-two".

Divisors: 1 2 4 8 43 86 107 172 214 344 359 428 718 856 1436 2872 4601 9202 15437 18404 30874 36808 38413 61748 76826 123496 153652 307304 1651759 3303518 6607036 13214072