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80277132988 = 22136730417577
BaseRepresentation
bin100101011000011100…
…0111101011010111100
321200012122120212222201
41022300320331122330
52303401421223423
6100513453321244
75541225241333
oct1126070753274
9250178525881
1080277132988
1131055392208
1213684796224
137754687530
143c578b8d1a
15214c9b22ad
hex12b0e3d6bc

80277132988 has 48 divisors (see below), whose sum is σ = 153620367264. Its totient is φ = 36481167360.

The previous prime is 80277132979. The next prime is 80277133003. The reversal of 80277132988 is 88923177208.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

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, 10591056 + ... + 10598632.

It is an arithmetic number, because the mean of its divisors is an integer number (3200424318).

Almost surely, 280277132988 is an apocalyptic number.

It is an amenable number.

80277132988 is a deficient number, since it is larger than the sum of its proper divisors (73343234276).

80277132988 is a wasteful number, since it uses less digits than its factorization.

80277132988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10702 (or 10700 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 55.

The spelling of 80277132988 in words is "eighty billion, two hundred seventy-seven million, one hundred thirty-two thousand, nine hundred eighty-eight".

Divisors: 1 2 4 13 26 52 67 134 268 871 1742 3041 3484 6082 7577 12164 15154 30308 39533 79066 98501 158132 197002 203747 394004 407494 507659 814988 1015318 2030636 2648711 5297422 6599567 10594844 13199134 23041657 26398268 46083314 92166628 299541541 599083082 1198166164 1543791019 3087582038 6175164076 20069283247 40138566494 80277132988