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7070201861 is a prime number
BaseRepresentation
bin1101001010110101…
…01011100000000101
3200020201211110122012
412211122223200011
5103434432424421
63125322544005
7340130503262
oct64532534005
920221743565
107070201861
112aa8a43338
121453968005
13888a155c8
144b0dd2269
152b5a8495b
hex1a56ab805

7070201861 has 2 divisors, whose sum is σ = 7070201862. Its totient is φ = 7070201860.

The previous prime is 7070201851. The next prime is 7070201921. The reversal of 7070201861 is 1681020707.

7070201861 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6927399361 + 142802500 = 83231^2 + 11950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-7070201861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7070201851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3535100930 + 3535100931.

It is an arithmetic number, because the mean of its divisors is an integer number (3535100931).

Almost surely, 27070201861 is an apocalyptic number.

It is an amenable number.

7070201861 is a deficient number, since it is larger than the sum of its proper divisors (1).

7070201861 is an equidigital number, since it uses as much as digits as its factorization.

7070201861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 32.

The square root of 7070201861 is about 84084.4923930685. The cubic root of 7070201861 is about 1919.3047487250.

The spelling of 7070201861 in words is "seven billion, seventy million, two hundred one thousand, eight hundred sixty-one".