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34409121389 = 284471209587
BaseRepresentation
bin100000000010111100…
…011000011001101101
310021211000211110212022
4200002330120121231
51030432213341024
623450214515525
72325455464106
oct400274303155
9107730743768
1034409121389
1113658063205
126803665ba5
13332499ca76
141945c593ad
15d65c6535e
hex802f1866d

34409121389 has 4 divisors (see below), whose sum is σ = 34410359424. Its totient is φ = 34407883356.

The previous prime is 34409121347. The next prime is 34409121403. The reversal of 34409121389 is 98312190443.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98312190443 = 754113037023.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-34409121389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34409121589) 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, 576347 + ... + 633240.

It is an arithmetic number, because the mean of its divisors is an integer number (8602589856).

Almost surely, 234409121389 is an apocalyptic number.

It is an amenable number.

34409121389 is a deficient number, since it is larger than the sum of its proper divisors (1238035).

34409121389 is a wasteful number, since it uses less digits than its factorization.

34409121389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238034.

The product of its (nonzero) digits is 186624, while the sum is 44.

The spelling of 34409121389 in words is "thirty-four billion, four hundred nine million, one hundred twenty-one thousand, three hundred eighty-nine".

Divisors: 1 28447 1209587 34409121389