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2142291319 = 7243720231
BaseRepresentation
bin111111110110000…
…1100010101110111
312112022002200012221
41333230030111313
513341411310234
6552324423211
7104042114200
oct17754142567
95468080187
102142291319
119aa2a41a3
124b9547b07
13281aa75cc
141647385a7
15c811ceb4
hex7fb0c577

2142291319 has 6 divisors (see below), whose sum is σ = 2492053224. Its totient is φ = 1836249660.

The previous prime is 2142291311. The next prime is 2142291383. The reversal of 2142291319 is 9131922412.

It is not a de Polignac number, because 2142291319 - 23 = 2142291311 is a prime.

It is a super-2 number, since 2×21422913192 = 9178824190925519522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142291311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21860067 + ... + 21860164.

It is an arithmetic number, because the mean of its divisors is an integer number (415342204).

Almost surely, 22142291319 is an apocalyptic number.

2142291319 is a deficient number, since it is larger than the sum of its proper divisors (349761905).

2142291319 is an equidigital number, since it uses as much as digits as its factorization.

2142291319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43720245 (or 43720238 counting only the distinct ones).

The product of its digits is 7776, while the sum is 34.

The square root of 2142291319 is about 46284.8929889656. The cubic root of 2142291319 is about 1289.1185050108.

The spelling of 2142291319 in words is "two billion, one hundred forty-two million, two hundred ninety-one thousand, three hundred nineteen".

Divisors: 1 7 49 43720231 306041617 2142291319