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13930072 = 2313177879
BaseRepresentation
bin110101001000…
…111001011000
3222012201110121
4311020321120
512031230242
61214323024
7226255312
oct65107130
928181417
1013930072
117954962
1247b9474
132b69660
141bc87b2
151352667
hexd48e58

13930072 has 32 divisors (see below), whose sum is σ = 29786400. Its totient is φ = 6050304.

The previous prime is 13930069. The next prime is 13930087. The reversal of 13930072 is 27003931.

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, 2172 + ... + 5707.

It is an arithmetic number, because the mean of its divisors is an integer number (930825).

Almost surely, 213930072 is an apocalyptic number.

It is an amenable number.

13930072 is an abundant number, since it is smaller than the sum of its proper divisors (15856328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13930072 is a wasteful number, since it uses less digits than its factorization.

13930072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7915 (or 7911 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 13930072 is about 3732.3011668406. The cubic root of 13930072 is about 240.6122792398.

The spelling of 13930072 in words is "thirteen million, nine hundred thirty thousand, seventy-two".

Divisors: 1 2 4 8 13 17 26 34 52 68 104 136 221 442 884 1768 7879 15758 31516 63032 102427 133943 204854 267886 409708 535772 819416 1071544 1741259 3482518 6965036 13930072