Search a number
-
+
72807672804 = 22319331436819
BaseRepresentation
bin100001111001110101…
…1001110101111100100
320221221002110222220020
41003303223032233210
52143102231012204
653240345035140
75155146002436
oct1036353165744
9227832428806
1072807672804
1128972040219
121213b185ab0
136b340300c9
143749876656
151d61d63bd9
hex10f3acebe4

72807672804 has 24 divisors (see below), whose sum is σ = 170764806240. Its totient is φ = 24143476224.

The previous prime is 72807672767. The next prime is 72807672829. The reversal of 72807672804 is 40827670827.

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, 15716094 + ... + 15720725.

It is an arithmetic number, because the mean of its divisors is an integer number (7115200260).

Almost surely, 272807672804 is an apocalyptic number.

It is an amenable number.

72807672804 is an abundant number, since it is smaller than the sum of its proper divisors (97957133436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72807672804 is a wasteful number, since it uses less digits than its factorization.

72807672804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31437019 (or 31437017 counting only the distinct ones).

The product of its (nonzero) digits is 2107392, while the sum is 51.

The spelling of 72807672804 in words is "seventy-two billion, eight hundred seven million, six hundred seventy-two thousand, eight hundred four".

Divisors: 1 2 3 4 6 12 193 386 579 772 1158 2316 31436819 62873638 94310457 125747276 188620914 377241828 6067306067 12134612134 18201918201 24269224268 36403836402 72807672804