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34390931 = 195773137
BaseRepresentation
bin1000001100110…
…0001110010011
32101201020111012
42003030032103
532301002211
63225041135
7565214051
oct203141623
971636435
1034390931
111845a463
12b6261ab
137181783
1447d31d1
153044d8b
hex20cc393

34390931 has 8 divisors (see below), whose sum is σ = 36275280. Its totient is φ = 32514048.

The previous prime is 34390921. The next prime is 34390933. The reversal of 34390931 is 13909343.

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 34390931 - 214 = 34374547 is a prime.

It is a super-2 number, since 2×343909312 = 2365472270093522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34390933) 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, 9395 + ... + 12531.

It is an arithmetic number, because the mean of its divisors is an integer number (4534410).

Almost surely, 234390931 is an apocalyptic number.

34390931 is a deficient number, since it is larger than the sum of its proper divisors (1884349).

34390931 is a wasteful number, since it uses less digits than its factorization.

34390931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3733.

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 34390931 is about 5864.3781426508. The cubic root of 34390931 is about 325.1980835852.

It can be divided in two parts, 3 and 4390931, that added together give a palindrome (4390934).

The spelling of 34390931 in words is "thirty-four million, three hundred ninety thousand, nine hundred thirty-one".

Divisors: 1 19 577 3137 10963 59603 1810049 34390931