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34120313 = 229148997
BaseRepresentation
bin1000001000101…
…0001001111001
32101012111021022
42002022021321
532213322223
63215152225
7563006063
oct202121171
971174238
1034120313
1118295107
12b515675
1370b8546
144762733
152edeac8
hex208a279

34120313 has 4 divisors (see below), whose sum is σ = 34269540. Its totient is φ = 33971088.

The previous prime is 34120297. The next prime is 34120319. The reversal of 34120313 is 31302143.

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: 31302143 = 45616863.

It can be written as a sum of positive squares in 2 ways, for example, as 33500944 + 619369 = 5788^2 + 787^2 .

It is a cyclic number.

It is not a de Polignac number, because 34120313 - 24 = 34120297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34120291 and 34120300.

It is not an unprimeable number, because it can be changed into a prime (34120319) 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, 74270 + ... + 74727.

It is an arithmetic number, because the mean of its divisors is an integer number (8567385).

Almost surely, 234120313 is an apocalyptic number.

It is an amenable number.

34120313 is a deficient number, since it is larger than the sum of its proper divisors (149227).

34120313 is a wasteful number, since it uses less digits than its factorization.

34120313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149226.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 34120313 is about 5841.2595388324. The cubic root of 34120313 is about 324.3428551968.

Adding to 34120313 its reverse (31302143), we get a palindrome (65422456).

The spelling of 34120313 in words is "thirty-four million, one hundred twenty thousand, three hundred thirteen".

Divisors: 1 229 148997 34120313