Search a number
-
+
80756277460 = 2255101791573
BaseRepresentation
bin100101100110101110…
…0110000000011010100
321201110001011221122021
41023031130300003110
52310342101334320
6101033211142524
75556134014105
oct1131534600324
9251401157567
1080756277460
11312808a4581
1213799144a44
1377cca19981
143ca13a23ac
152179aaadaa
hex12cd7300d4

80756277460 has 24 divisors (see below), whose sum is σ = 169621643016. Its totient is φ = 32296137600.

The previous prime is 80756277421. The next prime is 80756277533. The reversal of 80756277460 is 6477265708.

It can be written as a sum of positive squares in 4 ways, for example, as 271722256 + 80484555204 = 16484^2 + 283698^2 .

It is a junction number, because it is equal to n+sod(n) for n = 80756277398 and 80756277407.

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, 293767 + ... + 497806.

It is an arithmetic number, because the mean of its divisors is an integer number (7067568459).

Almost surely, 280756277460 is an apocalyptic number.

It is an amenable number.

80756277460 is an abundant number, since it is smaller than the sum of its proper divisors (88865365556).

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

80756277460 is a wasteful number, since it uses less digits than its factorization.

80756277460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796683 (or 796681 counting only the distinct ones).

The product of its (nonzero) digits is 3951360, while the sum is 52.

The spelling of 80756277460 in words is "eighty billion, seven hundred fifty-six million, two hundred seventy-seven thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 5101 10202 20404 25505 51010 102020 791573 1583146 3166292 3957865 7915730 15831460 4037813873 8075627746 16151255492 20189069365 40378138730 80756277460