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2142255293 is a prime number
BaseRepresentation
bin111111110110000…
…0011100010111101
312112022000211210122
41333230003202331
513341404132133
6552323544325
7104041604153
oct17754034275
95468024718
102142255293
119aa27a122
124b952b0a5
13281a940a9
141647293d3
15c8112498
hex7fb038bd

2142255293 has 2 divisors, whose sum is σ = 2142255294. Its totient is φ = 2142255292.

The previous prime is 2142255257. The next prime is 2142255319. The reversal of 2142255293 is 3925522412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1201176964 + 941078329 = 34658^2 + 30677^2 .

It is a cyclic number.

It is not a de Polignac number, because 2142255293 - 216 = 2142189757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2142255233) 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, 1071127646 + 1071127647.

It is an arithmetic number, because the mean of its divisors is an integer number (1071127647).

Almost surely, 22142255293 is an apocalyptic number.

It is an amenable number.

2142255293 is a deficient number, since it is larger than the sum of its proper divisors (1).

2142255293 is an equidigital number, since it uses as much as digits as its factorization.

2142255293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 35.

The square root of 2142255293 is about 46284.5038106708. The cubic root of 2142255293 is about 1289.1112787849. Note that the first 3 decimals are identical.

The spelling of 2142255293 in words is "two billion, one hundred forty-two million, two hundred fifty-five thousand, two hundred ninety-three".