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2142055399 = 11608931981
BaseRepresentation
bin111111110101101…
…0010101111100111
312112021122200121011
41333223102233213
513341331233044
6552315403051
7104040112321
oct17753225747
95467580534
102142055399
119aa152a20
124b9453487
13281a24103
141646b6611
15c80c3134
hex7fad2be7

2142055399 has 8 divisors (see below), whose sum is σ = 2337244560. Its totient is φ = 1946942400.

The previous prime is 2142055397. The next prime is 2142055423. The reversal of 2142055399 is 9935502412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2142055399 - 21 = 2142055397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142055397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50989 + ... + 82969.

It is an arithmetic number, because the mean of its divisors is an integer number (292155570).

Almost surely, 22142055399 is an apocalyptic number.

2142055399 is a deficient number, since it is larger than the sum of its proper divisors (195189161).

2142055399 is a wasteful number, since it uses less digits than its factorization.

2142055399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38081.

The product of its (nonzero) digits is 97200, while the sum is 40.

The square root of 2142055399 is about 46282.3443550562. The cubic root of 2142055399 is about 1289.0711818481.

The spelling of 2142055399 in words is "two billion, one hundred forty-two million, fifty-five thousand, three hundred ninety-nine".

Divisors: 1 11 6089 31981 66979 351791 194732309 2142055399