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42312987037 is a prime number
BaseRepresentation
bin100111011010000011…
…001111000110011101
311001012212100110020001
4213122003033012131
51143124111041122
631234402054301
73025361312146
oct473203170635
9131185313201
1042312987037
1116a4363a482
12824a64a391
133cb4323a49
14209585aacd
151179ac1527
hex9da0cf19d

42312987037 has 2 divisors, whose sum is σ = 42312987038. Its totient is φ = 42312987036.

The previous prime is 42312987019. The next prime is 42312987053. The reversal of 42312987037 is 73078921324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25493231556 + 16819755481 = 159666^2 + 129691^2 .

It is a cyclic number.

It is not a de Polignac number, because 42312987037 - 223 = 42304598429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42312981037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21156493518 + 21156493519.

It is an arithmetic number, because the mean of its divisors is an integer number (21156493519).

Almost surely, 242312987037 is an apocalyptic number.

It is an amenable number.

42312987037 is a deficient number, since it is larger than the sum of its proper divisors (1).

42312987037 is an equidigital number, since it uses as much as digits as its factorization.

42312987037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 42312987037 in words is "forty-two billion, three hundred twelve million, nine hundred eighty-seven thousand, thirty-seven".