Search a number
-
+
80640600268 = 2279710935897
BaseRepresentation
bin100101100011010001…
…1011110100011001100
321201010222111221100211
41023012203132203030
52310122443202033
6101013515532204
75553230535604
oct1130643364314
9251128457324
1080640600268
1131221575598
121376645a064
1377b1a77527
143c8dc8dc04
15216e85b2cd
hex12c68de8cc

80640600268 has 24 divisors (see below), whose sum is σ = 142931476800. Its totient is φ = 39803207808.

The previous prime is 80640600203. The next prime is 80640600319. The reversal of 80640600268 is 86200604608.

It is a self number, because there is not a number n which added to its sum of digits gives 80640600268.

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, 2228496 + ... + 2264392.

It is an arithmetic number, because the mean of its divisors is an integer number (5955478200).

Almost surely, 280640600268 is an apocalyptic number.

It is an amenable number.

80640600268 is a deficient number, since it is larger than the sum of its proper divisors (62290876532).

80640600268 is a wasteful number, since it uses less digits than its factorization.

80640600268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43089 (or 43087 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The spelling of 80640600268 in words is "eighty billion, six hundred forty million, six hundred thousand, two hundred sixty-eight".

Divisors: 1 2 4 79 158 316 7109 14218 28436 35897 71794 143588 561611 1123222 2246444 2835863 5671726 11343452 255191773 510383546 1020767092 20160150067 40320300134 80640600268