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80801197 = 563143519
BaseRepresentation
bin1001101000011…
…10110110101101
312122001010101221
410310032312231
5131141114242
612003503341
72000541001
oct464166655
9178033357
1080801197
1141679154
1223087b51
1313980c79
14aa34701
157161167
hex4d0edad

80801197 has 4 divisors (see below), whose sum is σ = 80945280. Its totient is φ = 80657116.

The previous prime is 80801191. The next prime is 80801233. The reversal of 80801197 is 79110808.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-80801197 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 (80801191) 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, 71197 + ... + 72322.

It is an arithmetic number, because the mean of its divisors is an integer number (20236320).

Almost surely, 280801197 is an apocalyptic number.

It is an amenable number.

80801197 is a deficient number, since it is larger than the sum of its proper divisors (144083).

80801197 is a wasteful number, since it uses less digits than its factorization.

80801197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144082.

The product of its (nonzero) digits is 4032, while the sum is 34.

The square root of 80801197 is about 8988.9486037022. The cubic root of 80801197 is about 432.3206014184.

The spelling of 80801197 in words is "eighty million, eight hundred one thousand, one hundred ninety-seven".

Divisors: 1 563 143519 80801197