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13744801 = 71963543
BaseRepresentation
bin110100011011…
…101010100001
3221212022022201
4310123222201
512004313201
61210333201
7224554210
oct64335241
927768281
1013744801
117838744
12472a201
132b03225
141b7b077
151317801
hexd1baa1

13744801 has 4 divisors (see below), whose sum is σ = 15708352. Its totient is φ = 11781252.

The previous prime is 13744793. The next prime is 13744807. The reversal of 13744801 is 10844731.

13744801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 10844731 = 59183809.

It is not a de Polignac number, because 13744801 - 23 = 13744793 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 13744801.

It is not an unprimeable number, because it can be changed into a prime (13744807) 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, 981765 + ... + 981778.

It is an arithmetic number, because the mean of its divisors is an integer number (3927088).

Almost surely, 213744801 is an apocalyptic number.

It is an amenable number.

13744801 is a deficient number, since it is larger than the sum of its proper divisors (1963551).

13744801 is an equidigital number, since it uses as much as digits as its factorization.

13744801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963550.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 13744801 is about 3707.3981442516. The cubic root of 13744801 is about 239.5407943899.

The spelling of 13744801 in words is "thirteen million, seven hundred forty-four thousand, eight hundred one".

Divisors: 1 7 1963543 13744801