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13184972 = 2215312153
BaseRepresentation
bin110010010010…
…111111001100
3220210212101022
4302102333030
511333404342
61150333312
7220033103
oct62227714
926725338
1013184972
117496079
1244ba238
132968478
141a7303a
1512569d2
hexc92fcc

13184972 has 12 divisors (see below), whose sum is σ = 23099496. Its totient is φ = 6585120.

The previous prime is 13184939. The next prime is 13184989. The reversal of 13184972 is 27948131.

It is a super-3 number, since 3×131849723 (a number of 22 digits) contains 333 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5048 + ... + 7200.

It is an arithmetic number, because the mean of its divisors is an integer number (1924958).

Almost surely, 213184972 is an apocalyptic number.

It is an amenable number.

13184972 is a deficient number, since it is larger than the sum of its proper divisors (9914524).

13184972 is a wasteful number, since it uses less digits than its factorization.

13184972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3688 (or 3686 counting only the distinct ones).

The product of its digits is 12096, while the sum is 35.

The square root of 13184972 is about 3631.1116755066. Note that the first 3 decimals coincide. The cubic root of 13184972 is about 236.2434287992.

The spelling of 13184972 in words is "thirteen million, one hundred eighty-four thousand, nine hundred seventy-two".

Divisors: 1 2 4 1531 2153 3062 4306 6124 8612 3296243 6592486 13184972