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13995073 = 19970327
BaseRepresentation
bin110101011000…
…110001000001
3222100000122001
4311120301001
512040320243
61215544001
7226645651
oct65306101
928300561
1013995073
117999784
12482b001
132b90111
141c04361
151366a4d
hexd58c41

13995073 has 4 divisors (see below), whose sum is σ = 14065600. Its totient is φ = 13924548.

The previous prime is 13995067. The next prime is 13995089. The reversal of 13995073 is 37059931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37059931 = 181204751.

It is a cyclic number.

It is not a de Polignac number, because 13995073 - 25 = 13995041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13995013) 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, 34965 + ... + 35362.

It is an arithmetic number, because the mean of its divisors is an integer number (3516400).

Almost surely, 213995073 is an apocalyptic number.

It is an amenable number.

13995073 is a deficient number, since it is larger than the sum of its proper divisors (70527).

13995073 is an equidigital number, since it uses as much as digits as its factorization.

13995073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70526.

The product of its (nonzero) digits is 25515, while the sum is 37.

The square root of 13995073 is about 3740.9989307670. The cubic root of 13995073 is about 240.9859498360.

The spelling of 13995073 in words is "thirteen million, nine hundred ninety-five thousand, seventy-three".

Divisors: 1 199 70327 13995073