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64807070846 = 2717272298617
BaseRepresentation
bin111100010110110011…
…010110110001111110
320012021111221022021012
4330112303112301332
52030211102231341
645434424235222
74452660004340
oct742663266176
9205244838235
1064807070846
11255369a1591
121068790bb12
13615a638ccb
1431cb093290
151a4479a0eb
hexf16cd6c7e

64807070846 has 16 divisors (see below), whose sum is σ = 117633002976. Its totient is φ = 26140667136.

The previous prime is 64807070827. The next prime is 64807070879.

64807070846 is nontrivially palindromic in base 10.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 64807070794 and 64807070803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136149071 + ... + 136149546.

It is an arithmetic number, because the mean of its divisors is an integer number (7352062686).

Almost surely, 264807070846 is an apocalyptic number.

64807070846 is a deficient number, since it is larger than the sum of its proper divisors (52825932130).

64807070846 is a wasteful number, since it uses less digits than its factorization.

64807070846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272298643.

The product of its (nonzero) digits is 1806336, while the sum is 50.

The spelling of 64807070846 in words is "sixty-four billion, eight hundred seven million, seventy thousand, eight hundred forty-six".

Divisors: 1 2 7 14 17 34 119 238 272298617 544597234 1906090319 3812180638 4629076489 9258152978 32403535423 64807070846