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34393909369 = 155832207143
BaseRepresentation
bin100000000010000010…
…010110100001111001
310021202222012121220011
4200002002112201321
51030414320044434
623444512501521
72325212256151
oct400202264171
9107688177804
1034393909369
111364a513196
1267ba54a8a1
1333217a4a81
141943c19761
15d6475ce64
hex802096879

34393909369 has 4 divisors (see below), whose sum is σ = 34396132096. Its totient is φ = 34391686644.

The previous prime is 34393909273. The next prime is 34393909373. The reversal of 34393909369 is 96390939343.

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: 96390939343 = 530318176681.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-34393909369 is a prime.

It is a super-2 number, since 2×343939093692 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34393909379) 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, 1087989 + ... + 1119154.

It is an arithmetic number, because the mean of its divisors is an integer number (8599033024).

Almost surely, 234393909369 is an apocalyptic number.

It is an amenable number.

34393909369 is a deficient number, since it is larger than the sum of its proper divisors (2222727).

34393909369 is a wasteful number, since it uses less digits than its factorization.

34393909369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222726.

The product of its (nonzero) digits is 12754584, while the sum is 58.

The spelling of 34393909369 in words is "thirty-four billion, three hundred ninety-three million, nine hundred nine thousand, three hundred sixty-nine".

Divisors: 1 15583 2207143 34393909369