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80026630218 = 2324445923901
BaseRepresentation
bin100101010000111110…
…1010111100001001010
321122120012020000210100
41022201331113201022
52302343304131333
6100432544230230
75532064063503
oct1124175274112
9248505200710
1080026630218
1130a36a45827
121361490b376
1377147ca042
143c3250bbaa
1521359ce213
hex12a1f5784a

80026630218 has 12 divisors (see below), whose sum is σ = 173391032178. Its totient is φ = 26675543400.

The previous prime is 80026630199. The next prime is 80026630247. The reversal of 80026630218 is 81203662008.

80026630218 is a `hidden beast` number, since 8 + 0 + 0 + 2 + 6 + 630 + 2 + 18 = 666.

It can be written as a sum of positive squares in only one way, i.e., 57875368329 + 22151261889 = 240573^2 + 148833^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2222961933 + ... + 2222961968.

Almost surely, 280026630218 is an apocalyptic number.

80026630218 is an abundant number, since it is smaller than the sum of its proper divisors (93364401960).

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

80026630218 is a wasteful number, since it uses less digits than its factorization.

80026630218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4445923909 (or 4445923906 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 80026630218 in words is "eighty billion, twenty-six million, six hundred thirty thousand, two hundred eighteen".

Divisors: 1 2 3 6 9 18 4445923901 8891847802 13337771703 26675543406 40013315109 80026630218