Search a number
-
+
80633231630 = 2572761141719
BaseRepresentation
bin100101100011000011…
…1010111100100001110
321201010110122120111022
41023012013113210032
52310114101403010
6101013053554142
75553111105650
oct1130607274416
9251113576438
1080633231630
11312183a2406
1213763aa5952
1377b03975a3
143c8ccd26d0
15216dda2d55
hex12c61d790e

80633231630 has 32 divisors (see below), whose sum is σ = 165884060160. Its totient is φ = 27644015520.

The previous prime is 80633231629. The next prime is 80633231639. The reversal of 80633231630 is 3613233608.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80633231639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1911911 + ... + 1953629.

It is an arithmetic number, because the mean of its divisors is an integer number (5183876880).

Almost surely, 280633231630 is an apocalyptic number.

80633231630 is an abundant number, since it is smaller than the sum of its proper divisors (85250828530).

80633231630 is a wasteful number, since it uses less digits than its factorization.

80633231630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69344.

The product of its (nonzero) digits is 46656, while the sum is 35.

The spelling of 80633231630 in words is "eighty billion, six hundred thirty-three million, two hundred thirty-one thousand, six hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 27611 41719 55222 83438 138055 193277 208595 276110 292033 386554 417190 584066 966385 1460165 1932770 2920330 1151903309 2303806618 5759516545 8063323163 11519033090 16126646326 40316615815 80633231630