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2040871321 = 26361312659
BaseRepresentation
bin111100110100101…
…0011100110011001
312021020021000010201
41321221103212121
513134430340241
6534302542201
7101401056106
oct17151234631
95236230121
102040871321
11958022915
1248b597961
13266a87688
14155097aad
15be287931
hex79a53999

2040871321 has 8 divisors (see below), whose sum is σ = 2052135360. Its totient is φ = 2029634352.

The previous prime is 2040871291. The next prime is 2040871333. The reversal of 2040871321 is 1231780402.

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 2040871321 - 29 = 2040870809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2040871321.

It is not an unprimeable number, because it can be changed into a prime (2040874321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154890 + ... + 167548.

It is an arithmetic number, because the mean of its divisors is an integer number (256516920).

Almost surely, 22040871321 is an apocalyptic number.

It is an amenable number.

2040871321 is a deficient number, since it is larger than the sum of its proper divisors (11264039).

2040871321 is a wasteful number, since it uses less digits than its factorization.

2040871321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13535.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 2040871321 is about 45176.0038183990. The cubic root of 2040871321 is about 1268.4456817236.

The spelling of 2040871321 in words is "two billion, forty million, eight hundred seventy-one thousand, three hundred twenty-one".

Divisors: 1 263 613 12659 161219 3329317 7759967 2040871321