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2140210331 = 71953303619
BaseRepresentation
bin111111110010001…
…0000010010011011
312112011011221122022
41333210100102123
513340343212311
6552212045055
7104015326160
oct17744202233
95464157568
102140210331
119a9102776
124b890378b
1328152935c
14164356067
15c7d5b5db
hex7f91049b

2140210331 has 16 divisors (see below), whose sum is σ = 2623276800. Its totient is φ = 1705118688.

The previous prime is 2140210327. The next prime is 2140210337. The reversal of 2140210331 is 1330120412.

It is not a de Polignac number, because 2140210331 - 22 = 2140210327 is a prime.

It is a super-2 number, since 2×21402103312 = 9161000521838259122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2140210337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144761 + ... + 158858.

It is an arithmetic number, because the mean of its divisors is an integer number (163954800).

Almost surely, 22140210331 is an apocalyptic number.

2140210331 is a deficient number, since it is larger than the sum of its proper divisors (483066469).

2140210331 is a wasteful number, since it uses less digits than its factorization.

2140210331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303698.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2140210331 is about 46262.4073195505. The cubic root of 2140210331 is about 1288.7009599880.

Adding to 2140210331 its reverse (1330120412), we get a palindrome (3470330743).

The spelling of 2140210331 in words is "two billion, one hundred forty million, two hundred ten thousand, three hundred thirty-one".

Divisors: 1 7 19 53 133 371 1007 7049 303619 2125333 5768761 16091807 40381327 112642649 305744333 2140210331