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34458869 = 191318013
BaseRepresentation
bin1000001101110…
…0110011110101
32101211200200102
42003130303311
532310140434
63230323445
7565616114
oct203346365
971750612
1034458869
11184a6505
12b659585
1371a6683
14480dc7b
15305a07e
hex20dccf5

34458869 has 4 divisors (see below), whose sum is σ = 34478796. Its totient is φ = 34438944.

The previous prime is 34458863. The next prime is 34458889. The reversal of 34458869 is 96885443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96885443 = 97998819.

It can be written as a sum of positive squares in 2 ways, for example, as 31080625 + 3378244 = 5575^2 + 1838^2 .

It is a cyclic number.

It is not a de Polignac number, because 34458869 - 212 = 34454773 is a prime.

It is a super-2 number, since 2×344588692 = 2374827305518322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34458863) 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, 7094 + ... + 10919.

It is an arithmetic number, because the mean of its divisors is an integer number (8619699).

Almost surely, 234458869 is an apocalyptic number.

It is an amenable number.

34458869 is a deficient number, since it is larger than the sum of its proper divisors (19927).

34458869 is a wasteful number, since it uses less digits than its factorization.

34458869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19926.

The product of its digits is 829440, while the sum is 47.

The square root of 34458869 is about 5870.1677148102. The cubic root of 34458869 is about 325.4120816222.

The spelling of 34458869 in words is "thirty-four million, four hundred fifty-eight thousand, eight hundred sixty-nine".

Divisors: 1 1913 18013 34458869