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14921801 = 17979049
BaseRepresentation
bin111000111011…
…000001001001
31001002002212022
4320323001021
512304444201
61251454225
7240555536
oct70730111
931062768
1014921801
118471a74
124bb7375
133125b8b
141da5d8d
15149b41b
hexe3b049

14921801 has 8 divisors (see below), whose sum is σ = 15964200. Its totient is φ = 13897728.

The previous prime is 14921743. The next prime is 14921807. The reversal of 14921801 is 10812941.

It can be written as a sum of positive squares in 4 ways, for example, as 6130576 + 8791225 = 2476^2 + 2965^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14921801 - 210 = 14920777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14921807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2876 + ... + 6173.

It is an arithmetic number, because the mean of its divisors is an integer number (1995525).

Almost surely, 214921801 is an apocalyptic number.

It is an amenable number.

14921801 is a deficient number, since it is larger than the sum of its proper divisors (1042399).

14921801 is an equidigital number, since it uses as much as digits as its factorization.

14921801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9163.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 14921801 is about 3862.8747067437. The cubic root of 14921801 is about 246.1918931499.

The spelling of 14921801 in words is "fourteen million, nine hundred twenty-one thousand, eight hundred one".

Divisors: 1 17 97 1649 9049 153833 877753 14921801