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34879492909 = 172051734877
BaseRepresentation
bin100000011110111110…
…101101001100101101
310100000210220211021201
4200132332231030231
51032413122233114
624005020325501
72343226540462
oct403676551455
9110023824251
1034879492909
11138796232a8
1269150a3891
13339b280001
14198c4db669
15d921c9874
hex81efad32d

34879492909 has 4 divisors (see below), whose sum is σ = 36931227804. Its totient is φ = 32827758016.

The previous prime is 34879492903. The next prime is 34879492931. The reversal of 34879492909 is 90929497843.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30503670409 + 4375822500 = 174653^2 + 66150^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-34879492909 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 (34879492903) 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, 1025867422 + ... + 1025867455.

It is an arithmetic number, because the mean of its divisors is an integer number (9232806951).

Almost surely, 234879492909 is an apocalyptic number.

It is an amenable number.

34879492909 is a deficient number, since it is larger than the sum of its proper divisors (2051734895).

34879492909 is a wasteful number, since it uses less digits than its factorization.

34879492909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051734894.

The product of its (nonzero) digits is 35271936, while the sum is 64.

The spelling of 34879492909 in words is "thirty-four billion, eight hundred seventy-nine million, four hundred ninety-two thousand, nine hundred nine".

Divisors: 1 17 2051734877 34879492909