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3768686417 = 6756249051
BaseRepresentation
bin1110000010100001…
…1001011101010001
3100201122110002212102
43200220121131101
530204240431132
61421544010145
7162251206646
oct34050313521
910648402772
103768686417
111664363981
12892160955
13480a22582
1427a73ddcd
15170cd2c62
hexe0a19751

3768686417 has 4 divisors (see below), whose sum is σ = 3824935536. Its totient is φ = 3712437300.

The previous prime is 3768686407. The next prime is 3768686431. The reversal of 3768686417 is 7146868673.

3768686417 is digitally balanced in base 3, 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7146868673 = 71020981239.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3768686417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3768686407) 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, 28124459 + ... + 28124592.

It is an arithmetic number, because the mean of its divisors is an integer number (956233884).

Almost surely, 23768686417 is an apocalyptic number.

It is an amenable number.

3768686417 is a deficient number, since it is larger than the sum of its proper divisors (56249119).

3768686417 is an equidigital number, since it uses as much as digits as its factorization.

3768686417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56249118.

The product of its digits is 8128512, while the sum is 56.

The square root of 3768686417 is about 61389.6279268738. The cubic root of 3768686417 is about 1556.1925580815.

The spelling of 3768686417 in words is "three billion, seven hundred sixty-eight million, six hundred eighty-six thousand, four hundred seventeen".

Divisors: 1 67 56249051 3768686417