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2271435081 = 32343176379
BaseRepresentation
bin1000011101100011…
…0101100101001001
312212022002212011020
42013120311211021
514122441410311
61013220423053
7110200610466
oct20730654511
95768085136
102271435081
11a66190883
12534847a89
132a2783436
1417795466d
15d462cc06
hex87635949

2271435081 has 16 divisors (see below), whose sum is σ = 3167631360. Its totient is φ = 1445071760.

The previous prime is 2271435073. The next prime is 2271435149. The reversal of 2271435081 is 1805341722.

It is a cyclic number.

It is not a de Polignac number, because 2271435081 - 23 = 2271435073 is a prime.

It is a super-2 number, since 2×22714350812 = 10318834654394953122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2271435011) 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, 8451 + ... + 67928.

It is an arithmetic number, because the mean of its divisors is an integer number (197976960).

Almost surely, 22271435081 is an apocalyptic number.

It is an amenable number.

2271435081 is a deficient number, since it is larger than the sum of its proper divisors (896196279).

2271435081 is a wasteful number, since it uses less digits than its factorization.

2271435081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76836.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 2271435081 is about 47659.5749141765. The cubic root of 2271435081 is about 1314.5187231932.

The spelling of 2271435081 in words is "two billion, two hundred seventy-one million, four hundred thirty-five thousand, eighty-one".

Divisors: 1 3 23 69 431 1293 9913 29739 76379 229137 1756717 5270151 32919349 98758047 757145027 2271435081