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13520083 = 17795299
BaseRepresentation
bin110011100100…
…110011010011
3221102220001211
4303210303103
511430120313
61201440551
7222630103
oct63446323
927386054
1013520083
1176a4925
124640157
132a54b65
141b1d203
1512c0e3d
hexce4cd3

13520083 has 4 divisors (see below), whose sum is σ = 14315400. Its totient is φ = 12724768.

The previous prime is 13520081. The next prime is 13520099. The reversal of 13520083 is 38002531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13520083 - 21 = 13520081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13520081) 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, 397633 + ... + 397666.

It is an arithmetic number, because the mean of its divisors is an integer number (3578850).

Almost surely, 213520083 is an apocalyptic number.

13520083 is a deficient number, since it is larger than the sum of its proper divisors (795317).

13520083 is an equidigital number, since it uses as much as digits as its factorization.

13520083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795316.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 13520083 is about 3676.9665486648. The cubic root of 13520083 is about 238.2281725358.

The spelling of 13520083 in words is "thirteen million, five hundred twenty thousand, eighty-three".

Divisors: 1 17 795299 13520083