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830078672 = 2451879917
BaseRepresentation
bin110001011110011…
…111111011010000
32010211221100212112
4301132133323100
53200000004142
6214211244452
726366360303
oct6136377320
92124840775
10830078672
11396615435
121b1ba9728
13102c84917
147c358b3a
154cd19382
hex3179fed0

830078672 has 10 divisors (see below), whose sum is σ = 1608277458. Its totient is φ = 415039328.

The previous prime is 830078659. The next prime is 830078713. The reversal of 830078672 is 276870038.

It can be written as a sum of positive squares in only one way, i.e., 716954176 + 113124496 = 26776^2 + 10636^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25939943 + ... + 25939974.

Almost surely, 2830078672 is an apocalyptic number.

It is an amenable number.

830078672 is a deficient number, since it is larger than the sum of its proper divisors (778198786).

830078672 is a wasteful number, since it uses less digits than its factorization.

830078672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51879925 (or 51879919 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 830078672 is about 28811.0859219155. The cubic root of 830078672 is about 939.8093290647.

The spelling of 830078672 in words is "eight hundred thirty million, seventy-eight thousand, six hundred seventy-two".

Divisors: 1 2 4 8 16 51879917 103759834 207519668 415039336 830078672