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34330431 = 311443477
BaseRepresentation
bin1000001011110…
…1011100111111
32101121011111110
42002331130333
532242033211
63223453103
7564542502
oct202753477
971534443
1034330431
1118418a63
12b5b7193
137160085
1447b9139
153031ea6
hex20bd73f

34330431 has 4 divisors (see below), whose sum is σ = 45773912. Its totient is φ = 22886952.

The previous prime is 34330411. The next prime is 34330433. The reversal of 34330431 is 13403343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13403343 = 34467781.

It is not a de Polignac number, because 34330431 - 25 = 34330399 is a prime.

It is a super-2 number, since 2×343304312 = 2357156985291522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34330398 and 34330407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34330433) 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, 5721736 + ... + 5721741.

It is an arithmetic number, because the mean of its divisors is an integer number (11443478).

Almost surely, 234330431 is an apocalyptic number.

34330431 is a deficient number, since it is larger than the sum of its proper divisors (11443481).

34330431 is a wasteful number, since it uses less digits than its factorization.

34330431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11443480.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 34330431 is about 5859.2176098862. The cubic root of 34330431 is about 325.0072771546.

Adding to 34330431 its reverse (13403343), we get a palindrome (47733774).

The spelling of 34330431 in words is "thirty-four million, three hundred thirty thousand, four hundred thirty-one".

Divisors: 1 3 11443477 34330431