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80256328600 = 2352757325949
BaseRepresentation
bin100101010111110100…
…1100110001110011000
321200011012102220201211
41022233221212032120
52303331110003400
6100511431352504
75540553352210
oct1125751461630
9250135386654
1080256328600
11310446725a8
1213679822734
137750281c46
143c54c21240
15214ac52dba
hex12afa66398

80256328600 has 48 divisors (see below), whose sum is σ = 213252534000. Its totient is φ = 27516455040.

The previous prime is 80256328571. The next prime is 80256328613. The reversal of 80256328600 is 682365208.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28661575 + ... + 28664374.

It is an arithmetic number, because the mean of its divisors is an integer number (4442761125).

Almost surely, 280256328600 is an apocalyptic number.

It is an amenable number.

80256328600 is an abundant number, since it is smaller than the sum of its proper divisors (132996205400).

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

80256328600 is a wasteful number, since it uses less digits than its factorization.

80256328600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57325972 (or 57325963 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 80256328600 in words is "eighty billion, two hundred fifty-six million, three hundred twenty-eight thousand, six hundred".

Divisors: 1 2 4 5 7 8 10 14 20 25 28 35 40 50 56 70 100 140 175 200 280 350 700 1400 57325949 114651898 229303796 286629745 401281643 458607592 573259490 802563286 1146518980 1433148725 1605126572 2006408215 2293037960 2866297450 3210253144 4012816430 5732594900 8025632860 10032041075 11465189800 16051265720 20064082150 40128164300 80256328600