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80934277 = 556914533
BaseRepresentation
bin1001101001011…
…11010110000101
312122021212221211
410310233112011
5131204344102
612010411421
72001633664
oct464572605
9178255854
1080934277
114175a136
1223130b71
13139c9708
14aa6addb
15718a7d7
hex4d2f585

80934277 has 4 divisors (see below), whose sum is σ = 80954380. Its totient is φ = 80914176.

The previous prime is 80934241. The next prime is 80934283. The reversal of 80934277 is 77243908.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29582721 + 51351556 = 5439^2 + 7166^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-80934277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80934377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1698 + ... + 12835.

It is an arithmetic number, because the mean of its divisors is an integer number (20238595).

Almost surely, 280934277 is an apocalyptic number.

It is an amenable number.

80934277 is a deficient number, since it is larger than the sum of its proper divisors (20103).

80934277 is a wasteful number, since it uses less digits than its factorization.

80934277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20102.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 80934277 is about 8996.3479812644. The cubic root of 80934277 is about 432.5578160093.

The spelling of 80934277 in words is "eighty million, nine hundred thirty-four thousand, two hundred seventy-seven".

Divisors: 1 5569 14533 80934277