Search a number
-
+
6812765904 = 243720276089
BaseRepresentation
bin1100101100001001…
…01000111011010000
3122120210102100220010
412112010220323100
5102423032002104
63044005114520
7330553361160
oct62604507320
918523370803
106812765904
1129866a094a
1213a16b8a40
1384759b439
14488b3c5a0
1529d182489
hex196128ed0

6812765904 has 40 divisors (see below), whose sum is σ = 20113881280. Its totient is φ = 1946504448.

The previous prime is 6812765903. The next prime is 6812765941. The reversal of 6812765904 is 4095672186.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6812765903) 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, 10137709 + ... + 10138380.

It is an arithmetic number, because the mean of its divisors is an integer number (502847032).

Almost surely, 26812765904 is an apocalyptic number.

It is an amenable number.

6812765904 is an abundant number, since it is smaller than the sum of its proper divisors (13301115376).

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

6812765904 is a wasteful number, since it uses less digits than its factorization.

6812765904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20276107 (or 20276101 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 6812765904 is about 82539.4808803642. The cubic root of 6812765904 is about 1895.7212955359.

The spelling of 6812765904 in words is "six billion, eight hundred twelve million, seven hundred sixty-five thousand, nine hundred four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 168 336 20276089 40552178 60828267 81104356 121656534 141932623 162208712 243313068 283865246 324417424 425797869 486626136 567730492 851595738 973252272 1135460984 1703191476 2270921968 3406382952 6812765904