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13481923 = 713148153
BaseRepresentation
bin110011011011…
…011111000011
3221100221201111
4303123133003
511422410143
61200544151
7222410620
oct63333703
927327644
1013481923
117679194
124622057
132a40690
141b0d347
1512b499d
hexcdb7c3

13481923 has 8 divisors (see below), whose sum is σ = 16593248. Its totient is φ = 10666944.

The previous prime is 13481921. The next prime is 13481927. The reversal of 13481923 is 32918431.

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

It is a cyclic number.

It is not a de Polignac number, because 13481923 - 21 = 13481921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13481921) 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, 73986 + ... + 74167.

It is an arithmetic number, because the mean of its divisors is an integer number (2074156).

Almost surely, 213481923 is an apocalyptic number.

13481923 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13481923 is a deficient number, since it is larger than the sum of its proper divisors (3111325).

13481923 is a wasteful number, since it uses less digits than its factorization.

13481923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148173.

The product of its digits is 5184, while the sum is 31.

The square root of 13481923 is about 3671.7738220103. The cubic root of 13481923 is about 238.0038308825.

The spelling of 13481923 in words is "thirteen million, four hundred eighty-one thousand, nine hundred twenty-three".

Divisors: 1 7 13 91 148153 1037071 1925989 13481923