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80873702500 = 225432349481
BaseRepresentation
bin100101101010001110…
…0101100010001100100
321201202020010202111211
41023110130230101210
52311112131440000
6101053004041204
75562061062133
oct1132434542144
9251666122454
1080873702500
1131331107768
1213810533204
13781b151846
143cb2c0b91a
1521850537ba
hex12d472c464

80873702500 has 30 divisors (see below), whose sum is σ = 176854618094. Its totient is φ = 32349480000.

The previous prime is 80873702479. The next prime is 80873702501. The reversal of 80873702500 is 520737808.

It can be written as a sum of positive squares in 5 ways, for example, as 59830138404 + 21043564096 = 244602^2 + 145064^2 .

It is not an unprimeable number, because it can be changed into a prime (80873702501) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 16172241 + ... + 16177240.

Almost surely, 280873702500 is an apocalyptic number.

It is an amenable number.

80873702500 is an abundant number, since it is smaller than the sum of its proper divisors (95980915594).

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

80873702500 is a wasteful number, since it uses less digits than its factorization.

80873702500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32349505 (or 32349488 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The spelling of 80873702500 in words is "eighty billion, eight hundred seventy-three million, seven hundred two thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 500 625 1250 2500 32349481 64698962 129397924 161747405 323494810 646989620 808737025 1617474050 3234948100 4043685125 8087370250 16174740500 20218425625 40436851250 80873702500