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64405023314 = 232202511657
BaseRepresentation
bin111011111110110101…
…101010101001010010
320011020111102011201212
4323332311222221102
52023400141221224
645330503100122
74440005444162
oct737665525122
9204214364655
1064405023314
112534aa582a5
1210595141642
1360c525b768
14318d9185a2
151a1e32ed0e
hexefed6aa52

64405023314 has 4 divisors (see below), whose sum is σ = 96607534974. Its totient is φ = 32202511656.

The previous prime is 64405023301. The next prime is 64405023343. The reversal of 64405023314 is 41332050446.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41332050446 = 220666025223.

It can be written as a sum of positive squares in only one way, i.e., 44165124025 + 20239899289 = 210155^2 + 142267^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16101255827 + ... + 16101255830.

Almost surely, 264405023314 is an apocalyptic number.

64405023314 is a deficient number, since it is larger than the sum of its proper divisors (32202511660).

64405023314 is a wasteful number, since it uses less digits than its factorization.

64405023314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32202511659.

The product of its (nonzero) digits is 34560, while the sum is 32.

The spelling of 64405023314 in words is "sixty-four billion, four hundred five million, twenty-three thousand, three hundred fourteen".

Divisors: 1 2 32202511657 64405023314