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14836721 = 139106739
BaseRepresentation
bin111000100110…
…001111110001
31000220210011012
4320212033301
512244233341
61250000305
7240052514
oct70461761
930823135
1014836721
118414059
124b76095
1330c6233
141d82d7b
1514810eb
hexe263f1

14836721 has 4 divisors (see below), whose sum is σ = 14943600. Its totient is φ = 14729844.

The previous prime is 14836697. The next prime is 14836729. The reversal of 14836721 is 12763841.

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.

It is a cyclic number.

It is not a de Polignac number, because 14836721 - 210 = 14835697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14836729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53231 + ... + 53508.

It is an arithmetic number, because the mean of its divisors is an integer number (3735900).

Almost surely, 214836721 is an apocalyptic number.

It is an amenable number.

14836721 is a deficient number, since it is larger than the sum of its proper divisors (106879).

14836721 is a wasteful number, since it uses less digits than its factorization.

14836721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106878.

The product of its digits is 8064, while the sum is 32.

The square root of 14836721 is about 3851.8464403452. The cubic root of 14836721 is about 245.7230949062.

The spelling of 14836721 in words is "fourteen million, eight hundred thirty-six thousand, seven hundred twenty-one".

Divisors: 1 139 106739 14836721