Search a number
-
+
80356480988 = 22731199465209
BaseRepresentation
bin100101011010110011…
…1101001011111011100
321200102011220011222112
41022311213221133130
52304032224342423
6100525410133152
75543210550530
oct1126547513734
9250364804875
1080356480988
1131096158573
12136a72811b8
137767c49c04
143c64251bc0
152154937a78
hex12b59e97dc

80356480988 has 48 divisors (see below), whose sum is σ = 166731264000. Its totient is φ = 33160026240.

The previous prime is 80356480961. The next prime is 80356481003. The reversal of 80356480988 is 88908465308.

It is a super-2 number, since 2×803564809882 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59873 + ... + 405336.

It is an arithmetic number, because the mean of its divisors is an integer number (3473568000).

Almost surely, 280356480988 is an apocalyptic number.

It is an amenable number.

80356480988 is an abundant number, since it is smaller than the sum of its proper divisors (86374783012).

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

80356480988 is a wasteful number, since it uses less digits than its factorization.

80356480988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465450 (or 465448 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 59.

The spelling of 80356480988 in words is "eighty billion, three hundred fifty-six million, four hundred eighty thousand, nine hundred eighty-eight".

Divisors: 1 2 4 7 14 28 31 62 124 199 217 398 434 796 868 1393 2786 5572 6169 12338 24676 43183 86366 172732 465209 930418 1860836 3256463 6512926 13025852 14421479 28842958 57685916 92576591 100950353 185153182 201900706 370306364 403801412 648036137 1296072274 2592144548 2869874321 5739748642 11479497284 20089120247 40178240494 80356480988