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34379989 = 74911427
BaseRepresentation
bin1000001100100…
…1100011010101
32101200200110221
42003021203111
532300124424
63224514341
7565140130
oct203114325
971620427
1034379989
1118452216
12b61b9b1
1371797b7
1447cd217
1530419e4
hex20c98d5

34379989 has 4 divisors (see below), whose sum is σ = 39291424. Its totient is φ = 29468556.

The previous prime is 34379981. The next prime is 34380019. The reversal of 34379989 is 98997343.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 34379989 - 23 = 34379981 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 (34379981) 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 3 ways as a sum of consecutive naturals, for example, 2455707 + ... + 2455720.

It is an arithmetic number, because the mean of its divisors is an integer number (9822856).

Almost surely, 234379989 is an apocalyptic number.

It is an amenable number.

34379989 is a deficient number, since it is larger than the sum of its proper divisors (4911435).

34379989 is an equidigital number, since it uses as much as digits as its factorization.

34379989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4911434.

The product of its digits is 1469664, while the sum is 52.

The square root of 34379989 is about 5863.4451476926. The cubic root of 34379989 is about 325.1635910143.

The spelling of 34379989 in words is "thirty-four million, three hundred seventy-nine thousand, nine hundred eighty-nine".

Divisors: 1 7 4911427 34379989