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80874427 = 415967499
BaseRepresentation
bin1001101001000…
…00101110111011
312122011211212011
410310200232323
5131200440202
612005230351
72001264334
oct464405673
9178154764
1080874427
1141719177
12231023b7
13139a83ba
14aa5328b
157177bd7
hex4d20bbb

80874427 has 16 divisors (see below), whose sum is σ = 85680000. Its totient is φ = 76253760.

The previous prime is 80874419. The next prime is 80874461. The reversal of 80874427 is 72447808.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 80874427 - 23 = 80874419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80874427.

It is not an unprimeable number, because it can be changed into a prime (80874407) 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, 161824 + ... + 162322.

It is an arithmetic number, because the mean of its divisors is an integer number (5355000).

Almost surely, 280874427 is an apocalyptic number.

80874427 is a deficient number, since it is larger than the sum of its proper divisors (4805573).

80874427 is a wasteful number, since it uses less digits than its factorization.

80874427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666.

The product of its (nonzero) digits is 100352, while the sum is 40.

The square root of 80874427 is about 8993.0210163215. The cubic root of 80874427 is about 432.4511658140.

The spelling of 80874427 in words is "eighty million, eight hundred seventy-four thousand, four hundred twenty-seven".

Divisors: 1 41 59 67 499 2419 2747 3953 20459 29441 33433 162073 1207081 1370753 1972547 80874427