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80874812 = 2220218703
BaseRepresentation
bin1001101001000…
…00110100111100
312122011212101102
410310200310330
5131200443222
612005232232
72001265424
oct464406474
9178155342
1080874812
1141719497
1223102678
13139a8625
14aa53484
157177d92
hex4d20d3c

80874812 has 6 divisors (see below), whose sum is σ = 141530928. Its totient is φ = 40437404.

The previous prime is 80874809. The next prime is 80874863. The reversal of 80874812 is 21847808.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10109348 + ... + 10109355.

It is an arithmetic number, because the mean of its divisors is an integer number (23588488).

Almost surely, 280874812 is an apocalyptic number.

It is an amenable number.

80874812 is a deficient number, since it is larger than the sum of its proper divisors (60656116).

80874812 is a wasteful number, since it uses less digits than its factorization.

80874812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20218707 (or 20218705 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 38.

The square root of 80874812 is about 8993.0424217836. The cubic root of 80874812 is about 432.4518520360.

The spelling of 80874812 in words is "eighty million, eight hundred seventy-four thousand, eight hundred twelve".

Divisors: 1 2 4 20218703 40437406 80874812