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3808980949 = 7153647619
BaseRepresentation
bin1110001100001000…
…0110111111010101
3100211110021021120111
43203002012333111
530300044342244
61425543403021
7163250542504
oct34302067725
910743237514
103808980949
111685085844
128a3753471
134891901a7
14281c2c83b
151745e1e34
hexe3086fd5

3808980949 has 4 divisors (see below), whose sum is σ = 3862628640. Its totient is φ = 3755333260.

The previous prime is 3808980919. The next prime is 3808980953. The reversal of 3808980949 is 9490898083.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3808980949 - 215 = 3808948181 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3808980893 and 3808980902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3808980919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26823739 + ... + 26823880.

It is an arithmetic number, because the mean of its divisors is an integer number (965657160).

Almost surely, 23808980949 is an apocalyptic number.

It is an amenable number.

3808980949 is a deficient number, since it is larger than the sum of its proper divisors (53647691).

3808980949 is an equidigital number, since it uses as much as digits as its factorization.

3808980949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53647690.

The product of its (nonzero) digits is 4478976, while the sum is 58.

The square root of 3808980949 is about 61716.9421552948. The cubic root of 3808980949 is about 1561.7191420688.

The spelling of 3808980949 in words is "three billion, eight hundred eight million, nine hundred eighty thousand, nine hundred forty-nine".

Divisors: 1 71 53647619 3808980949