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13330993 = 137871303
BaseRepresentation
bin110010110110…
…101000110001
3221002021200111
4302312220301
511403042433
61153421321
7221211604
oct62665061
927067614
1013330993
117585855
12456a841
1329b9a80
141ab033b
151284dcd
hexcb6a31

13330993 has 8 divisors (see below), whose sum is σ = 14385728. Its totient is φ = 12280464.

The previous prime is 13330987. The next prime is 13331011. The reversal of 13330993 is 39903331.

13330993 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13330993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13330943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9580 + ... + 10882.

It is an arithmetic number, because the mean of its divisors is an integer number (1798216).

Almost surely, 213330993 is an apocalyptic number.

13330993 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13330993 is a deficient number, since it is larger than the sum of its proper divisors (1054735).

13330993 is a wasteful number, since it uses less digits than its factorization.

13330993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2103.

The product of its (nonzero) digits is 6561, while the sum is 31.

The square root of 13330993 is about 3651.1632392979. The cubic root of 13330993 is about 237.1123456276.

The spelling of 13330993 in words is "thirteen million, three hundred thirty thousand, nine hundred ninety-three".

Divisors: 1 13 787 1303 10231 16939 1025461 13330993