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6872770664 = 2319912133559
BaseRepresentation
bin1100110011010011…
…00010100001101000
3122201222022220221122
412121221202201220
5103033412130124
63053551154412
7332212405154
oct63151424150
918658286848
106872770664
112a07555361
1213b9815a08
13856b4a606
14492abc064
152a358675e
hex199a62868

6872770664 has 32 divisors (see below), whose sum is σ = 12965520000. Its totient is φ = 3415338432.

The previous prime is 6872770657. The next prime is 6872770669. The reversal of 6872770664 is 4660772786.

It is not an unprimeable number, because it can be changed into a prime (6872770669) 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, 1929317 + ... + 1932875.

It is an arithmetic number, because the mean of its divisors is an integer number (405172500).

Almost surely, 26872770664 is an apocalyptic number.

It is an amenable number.

6872770664 is a deficient number, since it is larger than the sum of its proper divisors (6092749336).

6872770664 is a wasteful number, since it uses less digits than its factorization.

6872770664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4977 (or 4973 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 53.

The square root of 6872770664 is about 82902.1752669977. The cubic root of 6872770664 is about 1901.2706794625.

The spelling of 6872770664 in words is "six billion, eight hundred seventy-two million, seven hundred seventy thousand, six hundred sixty-four".

Divisors: 1 2 4 8 199 398 796 1213 1592 2426 3559 4852 7118 9704 14236 28472 241387 482774 708241 965548 1416482 1931096 2832964 4317067 5665928 8634134 17268268 34536536 859096333 1718192666 3436385332 6872770664