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3873919045 = 5774783809
BaseRepresentation
bin1110011011100111…
…0101000001000101
3100222222110110220011
43212321311001011
530413210402140
61440223310221
7164666524423
oct34671650105
910888413804
103873919045
1117087a9797
1290144b371
134997789b9
1428a6d4113
1517a16ccea
hexe6e75045

3873919045 has 4 divisors (see below), whose sum is σ = 4648702860. Its totient is φ = 3099135232.

The previous prime is 3873919037. The next prime is 3873919051. The reversal of 3873919045 is 5409193783.

3873919045 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, and also an emirpimes, since its reverse is a distinct semiprime: 5409193783 = 7772741969.

It can be written as a sum of positive squares in 2 ways, for example, as 2828431489 + 1045487556 = 53183^2 + 32334^2 .

It is a cyclic number.

It is not a de Polignac number, because 3873919045 - 23 = 3873919037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3873919045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387391900 + ... + 387391909.

It is an arithmetic number, because the mean of its divisors is an integer number (1162175715).

Almost surely, 23873919045 is an apocalyptic number.

It is an amenable number.

3873919045 is a deficient number, since it is larger than the sum of its proper divisors (774783815).

3873919045 is an equidigital number, since it uses as much as digits as its factorization.

3873919045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774783814.

The product of its (nonzero) digits is 816480, while the sum is 49.

The square root of 3873919045 is about 62240.8149448575. The cubic root of 3873919045 is about 1570.5442613819.

The spelling of 3873919045 in words is "three billion, eight hundred seventy-three million, nine hundred nineteen thousand, forty-five".

Divisors: 1 5 774783809 3873919045