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2140531211 = 71323522321
BaseRepresentation
bin111111110010101…
…1110101000001011
312112011210020210202
41333211132220023
513340433444321
6552223002415
7104021133530
oct17745365013
95464706722
102140531211
119a9301865
124b8a3940b
1328160c420
141643dad87
15c7dc170b
hex7f95ea0b

2140531211 has 8 divisors (see below), whose sum is σ = 2634500064. Its totient is φ = 1693607040.

The previous prime is 2140531171. The next prime is 2140531213. The reversal of 2140531211 is 1121350412.

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 2140531211 - 26 = 2140531147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2140531213) 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 in 7 ways as a sum of consecutive naturals, for example, 11761070 + ... + 11761251.

It is an arithmetic number, because the mean of its divisors is an integer number (329312508).

Almost surely, 22140531211 is an apocalyptic number.

2140531211 is a deficient number, since it is larger than the sum of its proper divisors (493968853).

2140531211 is a wasteful number, since it uses less digits than its factorization.

2140531211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23522341.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 2140531211 is about 46265.8752321838. The cubic root of 2140531211 is about 1288.7653613996.

Adding to 2140531211 its reverse (1121350412), we get a palindrome (3261881623).

The spelling of 2140531211 in words is "two billion, one hundred forty million, five hundred thirty-one thousand, two hundred eleven".

Divisors: 1 7 13 91 23522321 164656247 305790173 2140531211