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13300991 = 111209181
BaseRepresentation
bin110010101111…
…010011111111
3221000202112022
4302233103333
511401112431
61153030355
7221025254
oct62572377
927022468
1013300991
117565260
1245553bb
1329a9212
141aa342b
15127b07b
hexcaf4ff

13300991 has 4 divisors (see below), whose sum is σ = 14510184. Its totient is φ = 12091800.

The previous prime is 13300979. The next prime is 13300997. The reversal of 13300991 is 19900331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19900331 = 111809121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13300991 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 13300991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13300997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 604580 + ... + 604601.

It is an arithmetic number, because the mean of its divisors is an integer number (3627546).

Almost surely, 213300991 is an apocalyptic number.

13300991 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13300991 is a deficient number, since it is larger than the sum of its proper divisors (1209193).

13300991 is a wasteful number, since it uses less digits than its factorization.

13300991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209192.

The product of its (nonzero) digits is 729, while the sum is 26.

The square root of 13300991 is about 3647.0523714364. The cubic root of 13300991 is about 236.9343346834.

The spelling of 13300991 in words is "thirteen million, three hundred thousand, nine hundred ninety-one".

Divisors: 1 11 1209181 13300991