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13119955 = 52623991
BaseRepresentation
bin110010000011…
…000111010011
3220200120012021
4302003013103
511324314310
61145112311
7216342412
oct62030723
926616167
1013119955
117451242
124488697
1329449b4
141a57479
1512425da
hexc831d3

13119955 has 4 divisors (see below), whose sum is σ = 15743952. Its totient is φ = 10495960.

The previous prime is 13119943. The next prime is 13119961. The reversal of 13119955 is 55991131.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13119955 - 217 = 12988883 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13119955.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1311991 + ... + 1312000.

It is an arithmetic number, because the mean of its divisors is an integer number (3935988).

Almost surely, 213119955 is an apocalyptic number.

13119955 is a deficient number, since it is larger than the sum of its proper divisors (2623997).

13119955 is an equidigital number, since it uses as much as digits as its factorization.

13119955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2623996.

The product of its digits is 6075, while the sum is 34.

The square root of 13119955 is about 3622.1478434763. The cubic root of 13119955 is about 235.8544719475.

The spelling of 13119955 in words is "thirteen million, one hundred nineteen thousand, nine hundred fifty-five".

Divisors: 1 5 2623991 13119955