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34230621 = 379971489
BaseRepresentation
bin1000001010010…
…1000101011101
32101102002120210
42002211011131
532230334441
63221403033
7563645505
oct202450535
971362523
1034230621
111835aa77
12b569479
137126809
144790a05
153012616
hex20a515d

34230621 has 16 divisors (see below), whose sum is σ = 46726400. Its totient is φ = 22284288.

The previous prime is 34230607. The next prime is 34230631. The reversal of 34230621 is 12603243.

It is a happy number.

It is not a de Polignac number, because 34230621 - 25 = 34230589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34230631) 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 15 ways as a sum of consecutive naturals, for example, 22245 + ... + 23733.

It is an arithmetic number, because the mean of its divisors is an integer number (2920400).

Almost surely, 234230621 is an apocalyptic number.

It is an amenable number.

34230621 is a deficient number, since it is larger than the sum of its proper divisors (12495779).

34230621 is a wasteful number, since it uses less digits than its factorization.

34230621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 34230621 is about 5850.6940613913. The cubic root of 34230621 is about 324.6920032782.

Adding to 34230621 its reverse (12603243), we get a palindrome (46833864).

The spelling of 34230621 in words is "thirty-four million, two hundred thirty thousand, six hundred twenty-one".

Divisors: 1 3 79 97 237 291 1489 4467 7663 22989 117631 144433 352893 433299 11410207 34230621