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13159906 = 247139999
BaseRepresentation
bin110010001100…
…110111100010
3220202120222221
4302030313202
511332104111
61150021254
7216600034
oct62146742
926676887
1013159906
117479261
1244a782a
132959c36
141a67c54
15124e371
hexc8cde2

13159906 has 8 divisors (see below), whose sum is σ = 20160000. Its totient is φ = 6439908.

The previous prime is 13159889. The next prime is 13159919. The reversal of 13159906 is 60995131.

13159906 is digitally balanced in base 2, because in such base 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 super-3 number, since 3×131599063 (a number of 22 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69906 + ... + 70093.

It is an arithmetic number, because the mean of its divisors is an integer number (2520000).

Almost surely, 213159906 is an apocalyptic number.

13159906 is a deficient number, since it is larger than the sum of its proper divisors (7000094).

13159906 is a wasteful number, since it uses less digits than its factorization.

13159906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140048.

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 13159906 is about 3627.6584734509. The cubic root of 13159906 is about 236.0936260711.

The spelling of 13159906 in words is "thirteen million, one hundred fifty-nine thousand, nine hundred six".

Divisors: 1 2 47 94 139999 279998 6579953 13159906