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13884445 = 54189761
BaseRepresentation
bin110100111101…
…110000011101
3222010101212201
4310331300131
512023300240
61213331501
7226005301
oct64756035
928111781
1013884445
117923653
124796b91
132b51963
141bb5d01
151343d9a
hexd3dc1d

13884445 has 16 divisors (see below), whose sum is σ = 17282160. Its totient is φ = 10700800.

The previous prime is 13884419. The next prime is 13884467. The reversal of 13884445 is 54448831.

It can be written as a sum of positive squares in 8 ways, for example, as 8328996 + 5555449 = 2886^2 + 2357^2 .

It is not a de Polignac number, because 13884445 - 25 = 13884413 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17865 + ... + 18625.

It is an arithmetic number, because the mean of its divisors is an integer number (1080135).

Almost surely, 213884445 is an apocalyptic number.

It is an amenable number.

13884445 is a deficient number, since it is larger than the sum of its proper divisors (3397715).

13884445 is an equidigital number, since it uses as much as digits as its factorization.

13884445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896.

The product of its digits is 61440, while the sum is 37.

The square root of 13884445 is about 3726.1837045428. The cubic root of 13884445 is about 240.3492888625.

The spelling of 13884445 in words is "thirteen million, eight hundred eighty-four thousand, four hundred forty-five".

Divisors: 1 5 41 89 205 445 761 3649 3805 18245 31201 67729 156005 338645 2776889 13884445