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34409129 = 252113649
BaseRepresentation
bin1000001101000…
…0101010101001
32101202011110012
42003100222221
532302043004
63225301305
7565321106
oct203205251
971664405
1034409129
11184720a7
12b634835
137189b41
1447d9aad
15304a46e
hex20d0aa9

34409129 has 4 divisors (see below), whose sum is σ = 34425300. Its totient is φ = 34392960.

The previous prime is 34409119. The next prime is 34409143. The reversal of 34409129 is 92190443.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92190443 = 127725909.

It can be written as a sum of positive squares in 2 ways, for example, as 1081600 + 33327529 = 1040^2 + 5773^2 .

It is a cyclic number.

It is not a de Polignac number, because 34409129 - 24 = 34409113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34409095 and 34409104.

It is not an unprimeable number, because it can be changed into a prime (34409119) 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, 4304 + ... + 9345.

It is an arithmetic number, because the mean of its divisors is an integer number (8606325).

Almost surely, 234409129 is an apocalyptic number.

It is an amenable number.

34409129 is a deficient number, since it is larger than the sum of its proper divisors (16171).

34409129 is a wasteful number, since it uses less digits than its factorization.

34409129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16170.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 34409129 is about 5865.9295086116. The cubic root of 34409129 is about 325.2554331153.

The spelling of 34409129 in words is "thirty-four million, four hundred nine thousand, one hundred twenty-nine".

Divisors: 1 2521 13649 34409129