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2142120313 = 79271100057
BaseRepresentation
bin111111110101110…
…0010100101111001
312112021202222122101
41333223202211321
513341340322223
6552321023401
7104040502504
oct17753424571
95467688571
102142120313
119aa197773
124b9484b61
13281a47818
141646d213b
15c80d74ad
hex7fae2979

2142120313 has 8 divisors (see below), whose sum is σ = 2177262080. Its totient is φ = 2107179360.

The previous prime is 2142120311. The next prime is 2142120353. The reversal of 2142120313 is 3130212412.

It is a happy number.

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 2142120313 - 21 = 2142120311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2142120311) 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, 28620 + ... + 71437.

It is an arithmetic number, because the mean of its divisors is an integer number (272157760).

Almost surely, 22142120313 is an apocalyptic number.

It is an amenable number.

2142120313 is a deficient number, since it is larger than the sum of its proper divisors (35141767).

2142120313 is a wasteful number, since it uses less digits than its factorization.

2142120313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100407.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2142120313 is about 46283.0456322831. The cubic root of 2142120313 is about 1289.0842032855.

Adding to 2142120313 its reverse (3130212412), we get a palindrome (5272332725).

The spelling of 2142120313 in words is "two billion, one hundred forty-two million, one hundred twenty thousand, three hundred thirteen".

Divisors: 1 79 271 21409 100057 7904503 27115447 2142120313