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79240901 is a prime number
BaseRepresentation
bin1001011100100…
…01111011000101
312112002212002012
410232101323011
5130241202101
611510224005
71651352015
oct456217305
9175085065
1079240901
1140802953
1222655005
1313555a0c
14a749c45
156e53bbb
hex4b91ec5

79240901 has 2 divisors, whose sum is σ = 79240902. Its totient is φ = 79240900.

The previous prime is 79240879. The next prime is 79240921. The reversal of 79240901 is 10904297.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78676900 + 564001 = 8870^2 + 751^2 .

It is a cyclic number.

It is not a de Polignac number, because 79240901 - 210 = 79239877 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79240921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39620450 + 39620451.

It is an arithmetic number, because the mean of its divisors is an integer number (39620451).

Almost surely, 279240901 is an apocalyptic number.

It is an amenable number.

79240901 is a deficient number, since it is larger than the sum of its proper divisors (1).

79240901 is an equidigital number, since it uses as much as digits as its factorization.

79240901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 79240901 is about 8901.7358419580. The cubic root of 79240901 is about 429.5197468563.

The spelling of 79240901 in words is "seventy-nine million, two hundred forty thousand, nine hundred one".