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31007985750941 is a prime number
BaseRepresentation
bin1110000110011100110111…
…11110011101001110011101
311001210100000211201100211112
413003032123332131032131
513031013323323012231
6145540512204031405
76350152536041033
oct703163376351635
9131710024640745
1031007985750941
11997545a641911
12358967b832565
13143c06accc2b4
14792b1a22c553
1538b8c767392b
hex1c339bf9d39d

31007985750941 has 2 divisors, whose sum is σ = 31007985750942. Its totient is φ = 31007985750940.

The previous prime is 31007985750899. The next prime is 31007985750979. The reversal of 31007985750941 is 14905758970013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30066414391225 + 941571359716 = 5483285^2 + 970346^2 .

It is a cyclic number.

It is not a de Polignac number, because 31007985750941 - 218 = 31007985488797 is a prime.

It is a super-2 number, since 2×310079857509412 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31007985755941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15503992875470 + 15503992875471.

It is an arithmetic number, because the mean of its divisors is an integer number (15503992875471).

Almost surely, 231007985750941 is an apocalyptic number.

It is an amenable number.

31007985750941 is a deficient number, since it is larger than the sum of its proper divisors (1).

31007985750941 is an equidigital number, since it uses as much as digits as its factorization.

31007985750941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9525600, while the sum is 59.

The spelling of 31007985750941 in words is "thirty-one trillion, seven billion, nine hundred eighty-five million, seven hundred fifty thousand, nine hundred forty-one".