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32100000997 is a prime number
BaseRepresentation
bin11101111001010011…
…110010010011100101
310001212002211000011211
4131321103302103211
51011220100012442
622425130231421
72214316335511
oct357123622345
9101762730154
1032100000997
1112682682949
12627a285571
13304748353c
1417a72d5141
15c7d191617
hex7794f24e5

32100000997 has 2 divisors, whose sum is σ = 32100000998. Its totient is φ = 32100000996.

The previous prime is 32100000953. The next prime is 32100001019. The reversal of 32100000997 is 79900000123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29345745636 + 2754255361 = 171306^2 + 52481^2 .

It is an emirp because it is prime and its reverse (79900000123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32100000997 - 219 = 32099476709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32100000937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16050000498 + 16050000499.

It is an arithmetic number, because the mean of its divisors is an integer number (16050000499).

Almost surely, 232100000997 is an apocalyptic number.

It is an amenable number.

32100000997 is a deficient number, since it is larger than the sum of its proper divisors (1).

32100000997 is an equidigital number, since it uses as much as digits as its factorization.

32100000997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402, while the sum is 31.

The spelling of 32100000997 in words is "thirty-two billion, one hundred million, nine hundred ninety-seven", and thus it is an aban number.