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9999613973 is a prime number
BaseRepresentation
bin10010101000000011…
…00000000000010101
3221210220001000121002
421110001200000111
5130434400121343
64332130233045
7502541213336
oct112401400025
927726030532
109999613973
114271580a88
121b30a25785
13c348b385b
146ac0a228d
153d7d338b8
hex254060015

9999613973 has 2 divisors, whose sum is σ = 9999613974. Its totient is φ = 9999613972.

The previous prime is 9999613951. The next prime is 9999614003. The reversal of 9999613973 is 3793169999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5335133764 + 4664480209 = 73042^2 + 68297^2 .

It is a cyclic number.

It is not a de Polignac number, because 9999613973 - 26 = 9999613909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9999616973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4999806986 + 4999806987.

It is an arithmetic number, because the mean of its divisors is an integer number (4999806987).

Almost surely, 29999613973 is an apocalyptic number.

It is an amenable number.

9999613973 is a deficient number, since it is larger than the sum of its proper divisors (1).

9999613973 is an equidigital number, since it uses as much as digits as its factorization.

9999613973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22320522, while the sum is 65.

The square root of 9999613973 is about 99998.0698463725. The cubic root of 9999613973 is about 2154.4069673432.

The spelling of 9999613973 in words is "nine billion, nine hundred ninety-nine million, six hundred thirteen thousand, nine hundred seventy-three".