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3879945953 = 13298457381
BaseRepresentation
bin1110011101000011…
…0100011011100001
3101000101210200020222
43213100310123201
530421231232303
61441000412425
7165101665532
oct34720643341
911011720228
103879945953
111711145904
12903477115
1349aaa9010
1428b422689
1517a95d938
hexe74346e1

3879945953 has 4 divisors (see below), whose sum is σ = 4178403348. Its totient is φ = 3581488560.

The previous prime is 3879945941. The next prime is 3879945959. The reversal of 3879945953 is 3595499783.

It is a happy number.

3879945953 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1383244864 + 2496701089 = 37192^2 + 49967^2 .

It is not a de Polignac number, because 3879945953 - 26 = 3879945889 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3879945959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149228678 + ... + 149228703.

It is an arithmetic number, because the mean of its divisors is an integer number (1044600837).

Almost surely, 23879945953 is an apocalyptic number.

It is an amenable number.

3879945953 is a deficient number, since it is larger than the sum of its proper divisors (298457395).

3879945953 is a wasteful number, since it uses less digits than its factorization.

3879945953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298457394.

The product of its digits is 36741600, while the sum is 62.

The square root of 3879945953 is about 62289.2121719323. The cubic root of 3879945953 is about 1571.3583053504.

The spelling of 3879945953 in words is "three billion, eight hundred seventy-nine million, nine hundred forty-five thousand, nine hundred fifty-three".

Divisors: 1 13 298457381 3879945953