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34890631 = 194144789
BaseRepresentation
bin1000010100011…
…0001110000111
32102122121221121
42011012032013
532413000011
63243454411
7602364646
oct205061607
972577847
1034890631
1118770936
12b827407
1372c8059
1448c335d
1530e2e71
hex2146387

34890631 has 8 divisors (see below), whose sum is σ = 37623600. Its totient is φ = 32247360.

The previous prime is 34890629. The next prime is 34890641. The reversal of 34890631 is 13609843.

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 34890631 - 21 = 34890629 is a prime.

It is a super-2 number, since 2×348906312 = 2434712263156322, 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 (34890641) 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, 21616 + ... + 23173.

It is an arithmetic number, because the mean of its divisors is an integer number (4702950).

Almost surely, 234890631 is an apocalyptic number.

34890631 is a deficient number, since it is larger than the sum of its proper divisors (2732969).

34890631 is a wasteful number, since it uses less digits than its factorization.

34890631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44849.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 34890631 is about 5906.8291832421. The cubic root of 34890631 is about 326.7655581248.

The spelling of 34890631 in words is "thirty-four million, eight hundred ninety thousand, six hundred thirty-one".

Divisors: 1 19 41 779 44789 850991 1836349 34890631