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80874663 = 3593831193
BaseRepresentation
bin1001101001000…
…00110010100111
312122011212011220
410310200302213
5131200442123
612005231423
72001265122
oct464406247
9178155156
1080874663
1141719371
1223102573
13139a853c
14aa533b9
157177ce3
hex4d20ca7

80874663 has 16 divisors (see below), whose sum is σ = 110039040. Its totient is φ = 52819904.

The previous prime is 80874653. The next prime is 80874671. The reversal of 80874663 is 36647808.

It is a cyclic number.

It is not a de Polignac number, because 80874663 - 28 = 80874407 is a prime.

It is a super-2 number, since 2×808746632 = 13081422230727138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80874653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67195 + ... + 68387.

It is an arithmetic number, because the mean of its divisors is an integer number (6877440).

Almost surely, 280874663 is an apocalyptic number.

80874663 is a deficient number, since it is larger than the sum of its proper divisors (29164377).

80874663 is a wasteful number, since it uses less digits than its factorization.

80874663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638.

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 80874663 is about 8993.0341375978. The cubic root of 80874663 is about 432.4515864594.

The spelling of 80874663 in words is "eighty million, eight hundred seventy-four thousand, six hundred sixty-three".

Divisors: 1 3 59 177 383 1149 1193 3579 22597 67791 70387 211161 456919 1370757 26958221 80874663