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34308431 = 174149223
BaseRepresentation
bin1000001011100…
…0000101001111
32101120001022122
42002320011033
532240332211
63223203155
7564421403
oct202700517
971501278
1034308431
1118403483
12b5a64bb
137153061
1447b1103
15302a6db
hex20b814f

34308431 has 8 divisors (see below), whose sum is σ = 37213344. Its totient is φ = 31502080.

The previous prime is 34308427. The next prime is 34308451. The reversal of 34308431 is 13480343.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 34308431 - 22 = 34308427 is a prime.

It is a super-2 number, since 2×343084312 = 2354136875363522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 34308431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34308451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23915 + ... + 25308.

It is an arithmetic number, because the mean of its divisors is an integer number (4651668).

Almost surely, 234308431 is an apocalyptic number.

34308431 is a deficient number, since it is larger than the sum of its proper divisors (2904913).

34308431 is a wasteful number, since it uses less digits than its factorization.

34308431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49281.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 34308431 is about 5857.3399252562. The cubic root of 34308431 is about 324.9378374206.

Adding to 34308431 its reverse (13480343), we get a palindrome (47788774).

The spelling of 34308431 in words is "thirty-four million, three hundred eight thousand, four hundred thirty-one".

Divisors: 1 17 41 697 49223 836791 2018143 34308431