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14820845 = 513228013
BaseRepresentation
bin111000100010…
…010111101101
31000212222101012
4320202113231
512243231340
61245355005
7236655314
oct70422755
930788335
1014820845
118403136
124b68a65
1330bbc40
141d7b27b
15147b565
hexe225ed

14820845 has 8 divisors (see below), whose sum is σ = 19153176. Its totient is φ = 10944576.

The previous prime is 14820833. The next prime is 14820847. The reversal of 14820845 is 54802841.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3076516 + 11744329 = 1754^2 + 3427^2 .

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 14820845 - 26 = 14820781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14820847) 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 7 ways as a sum of consecutive naturals, for example, 113942 + ... + 114071.

It is an arithmetic number, because the mean of its divisors is an integer number (2394147).

Almost surely, 214820845 is an apocalyptic number.

It is an amenable number.

14820845 is a deficient number, since it is larger than the sum of its proper divisors (4332331).

14820845 is a wasteful number, since it uses less digits than its factorization.

14820845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228031.

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 14820845 is about 3849.7850589351. The cubic root of 14820845 is about 245.6354184774.

The spelling of 14820845 in words is "fourteen million, eight hundred twenty thousand, eight hundred forty-five".

Divisors: 1 5 13 65 228013 1140065 2964169 14820845