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70312045457 is a prime number
BaseRepresentation
bin100000101111011101…
…1001010101110010001
320201111011111222202202
41001132323022232101
52122444340423312
652144555052545
75036253345113
oct1013673125621
9221434458682
1070312045457
1127901353485
1211763441155
136826ca2034
1435902433b3
151c67bed9c2
hex105eecab91

70312045457 has 2 divisors, whose sum is σ = 70312045458. Its totient is φ = 70312045456.

The previous prime is 70312045409. The next prime is 70312045621. The reversal of 70312045457 is 75454021307.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67192934656 + 3119110801 = 259216^2 + 55849^2 .

It is a cyclic number.

It is not a de Polignac number, because 70312045457 - 26 = 70312045393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70312045457.

It is not a weakly prime, because it can be changed into another prime (70312045057) 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, 35156022728 + 35156022729.

It is an arithmetic number, because the mean of its divisors is an integer number (35156022729).

Almost surely, 270312045457 is an apocalyptic number.

It is an amenable number.

70312045457 is a deficient number, since it is larger than the sum of its proper divisors (1).

70312045457 is an equidigital number, since it uses as much as digits as its factorization.

70312045457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 117600, while the sum is 38.

The spelling of 70312045457 in words is "seventy billion, three hundred twelve million, forty-five thousand, four hundred fifty-seven".