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13153990 = 251315399
BaseRepresentation
bin110010001011…
…011011000110
3220202021212211
4302023123012
511331411430
61145534034
7216543553
oct62133306
926667784
1013153990
117474873
1244a431a
132957335
141a65a2a
15124c72a
hexc8b6c6

13153990 has 8 divisors (see below), whose sum is σ = 23677200. Its totient is φ = 5261592.

The previous prime is 13153967. The next prime is 13153993. The reversal of 13153990 is 9935131.

13153990 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (13153993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 657690 + ... + 657709.

It is an arithmetic number, because the mean of its divisors is an integer number (2959650).

Almost surely, 213153990 is an apocalyptic number.

13153990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13153990 is a deficient number, since it is larger than the sum of its proper divisors (10523210).

13153990 is a wasteful number, since it uses less digits than its factorization.

13153990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315406.

The product of its (nonzero) digits is 3645, while the sum is 31.

The square root of 13153990 is about 3626.8429797828. The cubic root of 13153990 is about 236.0582423522.

The spelling of 13153990 in words is "thirteen million, one hundred fifty-three thousand, nine hundred ninety".

Divisors: 1 2 5 10 1315399 2630798 6576995 13153990