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13393870 = 257191341
BaseRepresentation
bin110011000101…
…111111001110
3221012110221021
4303011333032
511412100440
61155024354
7221563120
oct63057716
927173837
1013393870
117619016
12459b0ba
132a0c589
141ac9210
15129884a
hexcc5fce

13393870 has 16 divisors (see below), whose sum is σ = 27553248. Its totient is φ = 4592160.

The previous prime is 13393867. The next prime is 13393871. The reversal of 13393870 is 7839331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13393871) 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, 95601 + ... + 95740.

It is an arithmetic number, because the mean of its divisors is an integer number (1722078).

Almost surely, 213393870 is an apocalyptic number.

13393870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13393870 is an abundant number, since it is smaller than the sum of its proper divisors (14159378).

13393870 is a wasteful number, since it uses less digits than its factorization.

13393870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191355.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 13393870 is about 3659.7636535711. The cubic root of 13393870 is about 237.4845493180.

The spelling of 13393870 in words is "thirteen million, three hundred ninety-three thousand, eight hundred seventy".

Divisors: 1 2 5 7 10 14 35 70 191341 382682 956705 1339387 1913410 2678774 6696935 13393870