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80806426662020 = 2254785964283683
BaseRepresentation
bin10010010111111000110110…
…010110110101010010000100
3101121010000111210220000112212
4102113320312112311102010
541042413030211141040
6443505543202402552
723010033403466333
oct2227706626652204
9347100453800485
1080806426662020
11238248a4260164
1290909b0960458
1336120233c2787
1415d50a266dd1a
15951e62041d65
hex497e365b5484

80806426662020 has 24 divisors (see below), whose sum is σ = 173303995906944. Its totient is φ = 31634856394976.

The previous prime is 80806426662007. The next prime is 80806426662029. The reversal of 80806426662020 is 2026662460808.

It is a self number, because there is not a number n which added to its sum of digits gives 80806426662020.

It is not an unprimeable number, because it can be changed into a prime (80806426662029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42982140902 + ... + 42982142781.

It is an arithmetic number, because the mean of its divisors is an integer number (7220999829456).

Almost surely, 280806426662020 is an apocalyptic number.

It is an amenable number.

80806426662020 is an abundant number, since it is smaller than the sum of its proper divisors (92497569244924).

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

80806426662020 is a wasteful number, since it uses less digits than its factorization.

80806426662020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85964283739 (or 85964283737 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 50.

The spelling of 80806426662020 in words is "eighty trillion, eight hundred six billion, four hundred twenty-six million, six hundred sixty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 47 94 188 235 470 940 85964283683 171928567366 343857134732 429821418415 859642836830 1719285673660 4040321333101 8080642666202 16161285332404 20201606665505 40403213331010 80806426662020