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13444895 = 52688979
BaseRepresentation
bin110011010010…
…011100011111
3221022001221002
4303102130133
511420214040
61200100515
7222164642
oct63223437
927261832
1013444895
117653392
12460473b
132a29879
141adda59
1512a8a15
hexcd271f

13444895 has 4 divisors (see below), whose sum is σ = 16133880. Its totient is φ = 10755912.

The previous prime is 13444883. The next prime is 13444919. The reversal of 13444895 is 59844431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59844431 = 307194933.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13444895 is a prime.

It is a super-2 number, since 2×134448952 = 361530403122050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1344485 + ... + 1344494.

It is an arithmetic number, because the mean of its divisors is an integer number (4033470).

Almost surely, 213444895 is an apocalyptic number.

13444895 is a deficient number, since it is larger than the sum of its proper divisors (2688985).

13444895 is an equidigital number, since it uses as much as digits as its factorization.

13444895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2688984.

The product of its digits is 69120, while the sum is 38.

The square root of 13444895 is about 3666.7281055459. The cubic root of 13444895 is about 237.7857391883.

The spelling of 13444895 in words is "thirteen million, four hundred forty-four thousand, eight hundred ninety-five".

Divisors: 1 5 2688979 13444895