Search a number
-
+
34511989 = 172030117
BaseRepresentation
bin1000001110100…
…1110001110101
32101221101112211
42003221301311
532313340424
63231413421
7566230021
oct203516165
971841484
1034511989
1118532406
12b684271
1371c48c5
144825381
15306ab94
hex20e9c75

34511989 has 4 divisors (see below), whose sum is σ = 36542124. Its totient is φ = 32481856.

The previous prime is 34511987. The next prime is 34512011. The reversal of 34511989 is 98911543.

34511989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9180900 + 25331089 = 3030^2 + 5033^2 .

It is a cyclic number.

It is not a de Polignac number, because 34511989 - 21 = 34511987 is a prime.

It is a super-2 number, since 2×345119892 = 2382154769472242, 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 (34511987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1015042 + ... + 1015075.

It is an arithmetic number, because the mean of its divisors is an integer number (9135531).

Almost surely, 234511989 is an apocalyptic number.

It is an amenable number.

34511989 is a deficient number, since it is larger than the sum of its proper divisors (2030135).

34511989 is a wasteful number, since it uses less digits than its factorization.

34511989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2030134.

The product of its digits is 38880, while the sum is 40.

The square root of 34511989 is about 5874.6905450415. The cubic root of 34511989 is about 325.5792085529.

The spelling of 34511989 in words is "thirty-four million, five hundred eleven thousand, nine hundred eighty-nine".

Divisors: 1 17 2030117 34511989