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80972301 = 326990767
BaseRepresentation
bin1001101001110…
…00101000001101
312122100211010010
410310320220031
5131212103201
612011303433
72002152564
oct464705015
9178324103
1080972301
1141785763
122314ab79
1313a10b07
14aa7abdb
157196bd6
hex4d38a0d

80972301 has 4 divisors (see below), whose sum is σ = 107963072. Its totient is φ = 53981532.

The previous prime is 80972291. The next prime is 80972303. The reversal of 80972301 is 10327908.

It is a happy number.

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 not a de Polignac number, because 80972301 - 29 = 80971789 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 (80972303) 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, 13495381 + ... + 13495386.

It is an arithmetic number, because the mean of its divisors is an integer number (26990768).

Almost surely, 280972301 is an apocalyptic number.

It is an amenable number.

80972301 is a deficient number, since it is larger than the sum of its proper divisors (26990771).

80972301 is a wasteful number, since it uses less digits than its factorization.

80972301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26990770.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 80972301 is about 8998.4610350882. The cubic root of 80972301 is about 432.6255458757.

The spelling of 80972301 in words is "eighty million, nine hundred seventy-two thousand, three hundred one".

Divisors: 1 3 26990767 80972301