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34531213405 = 5131633259199
BaseRepresentation
bin100000001010001110…
…001000000001011101
310022010112120101121211
4200022032020001131
51031204442312110
623510255424421
72331500320363
oct401216100135
9108115511554
1034531213405
111370aa737a7
126838525111
133344079c70
14195815b633
15d7183098a
hex80a38805d

34531213405 has 16 divisors (see below), whose sum is σ = 44898739200. Its totient is φ = 25343523648.

The previous prime is 34531213403. The next prime is 34531213421. The reversal of 34531213405 is 50431213543.

It is a cyclic number.

It is not a de Polignac number, because 34531213405 - 21 = 34531213403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34531213403) 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, 1619005 + ... + 1640194.

It is an arithmetic number, because the mean of its divisors is an integer number (2806171200).

Almost surely, 234531213405 is an apocalyptic number.

It is an amenable number.

34531213405 is a deficient number, since it is larger than the sum of its proper divisors (10367525795).

34531213405 is a wasteful number, since it uses less digits than its factorization.

34531213405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3259380.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 34531213405 its reverse (50431213543), we get a palindrome (84962426948).

The spelling of 34531213405 in words is "thirty-four billion, five hundred thirty-one million, two hundred thirteen thousand, four hundred five".

Divisors: 1 5 13 65 163 815 2119 10595 3259199 16295995 42369587 211847935 531249437 2656247185 6906242681 34531213405