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64906950937 = 463683205253
BaseRepresentation
bin111100011100110000…
…010111100100011001
320012112110212201222211
4330130300113210121
52030412134412222
645452353115121
74455311660053
oct743460274431
9205473781884
1064906950937
1125588310a14
12106b5258aa1
13617523a05a
1431da4528d3
151a4d429277
hexf1cc17919

64906950937 has 8 divisors (see below), whose sum is σ = 65142693504. Its totient is φ = 64671621168.

The previous prime is 64906950917. The next prime is 64906950961. The reversal of 64906950937 is 73905960946.

64906950937 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64906950937 - 215 = 64906918169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64906950917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213603 + ... + 418855.

It is an arithmetic number, because the mean of its divisors is an integer number (8142836688).

Almost surely, 264906950937 is an apocalyptic number.

It is an amenable number.

64906950937 is a deficient number, since it is larger than the sum of its proper divisors (235742567).

64906950937 is a wasteful number, since it uses less digits than its factorization.

64906950937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206399.

The product of its (nonzero) digits is 11022480, while the sum is 58.

The spelling of 64906950937 in words is "sixty-four billion, nine hundred six million, nine hundred fifty thousand, nine hundred thirty-seven".

Divisors: 1 463 683 205253 316229 95032139 140187799 64906950937