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80933900 = 2252809339
BaseRepresentation
bin1001101001011…
…11010000001100
312122021212102212
410310233100030
5131204341100
612010405552
72001632615
oct464572014
9178255385
1080933900
1141759923
12231308b8
13139c94a8
14aa6ac0c
15718a635
hex4d2f40c

80933900 has 18 divisors (see below), whose sum is σ = 175626780. Its totient is φ = 32373520.

The previous prime is 80933893. The next prime is 80933921. The reversal of 80933900 is 933908.

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, 404570 + ... + 404769.

Almost surely, 280933900 is an apocalyptic number.

It is an amenable number.

80933900 is an abundant number, since it is smaller than the sum of its proper divisors (94692880).

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

80933900 is a wasteful number, since it uses less digits than its factorization.

80933900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809353 (or 809346 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 80933900 is about 8996.3270282933. The cubic root of 80933900 is about 432.5571443757.

The spelling of 80933900 in words is "eighty million, nine hundred thirty-three thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 809339 1618678 3237356 4046695 8093390 16186780 20233475 40466950 80933900