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34430233121 = 247713899973
BaseRepresentation
bin100000000100001100…
…111010101000100001
310021212111120001201022
4200010030322220201
51031003114424441
623452251215225
72326133103254
oct400414725041
9107774501638
1034430233121
1113668a72819
12680a747515
13332918220b
14194899309b
15d67a3584b
hex80433aa21

34430233121 has 4 divisors (see below), whose sum is σ = 34444135572. Its totient is φ = 34416330672.

The previous prime is 34430233099. The next prime is 34430233133. The reversal of 34430233121 is 12133203443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12133203443 = 28643423601.

It can be written as a sum of positive squares in 2 ways, for example, as 10087992721 + 24342240400 = 100439^2 + 156020^2 .

It is a cyclic number.

It is not a de Polignac number, because 34430233121 - 234 = 17250363937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (34430233181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6947510 + ... + 6952463.

It is an arithmetic number, because the mean of its divisors is an integer number (8611033893).

Almost surely, 234430233121 is an apocalyptic number.

It is an amenable number.

34430233121 is a deficient number, since it is larger than the sum of its proper divisors (13902451).

34430233121 is a wasteful number, since it uses less digits than its factorization.

34430233121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13902450.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 34430233121 its reverse (12133203443), we get a palindrome (46563436564).

The spelling of 34430233121 in words is "thirty-four billion, four hundred thirty million, two hundred thirty-three thousand, one hundred twenty-one".

Divisors: 1 2477 13899973 34430233121