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34404013 = 76317789
BaseRepresentation
bin1000001100111…
…1011010101101
32101201220102201
42003033122231
532301412023
63225221501
7565300150
oct203173255
971656381
1034404013
1118469276
12b631891
137187707
1447d7c97
153048bad
hex20cf6ad

34404013 has 8 divisors (see below), whose sum is σ = 39386240. Its totient is φ = 29438640.

The previous prime is 34404001. The next prime is 34404023. The reversal of 34404013 is 31040443.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 34404013 - 25 = 34403981 is a prime.

It is a super-2 number, since 2×344040132 = 2367272221008338, 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 (34404023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 523 + ... + 8311.

It is an arithmetic number, because the mean of its divisors is an integer number (4923280).

Almost surely, 234404013 is an apocalyptic number.

It is an amenable number.

34404013 is a deficient number, since it is larger than the sum of its proper divisors (4982227).

34404013 is an equidigital number, since it uses as much as digits as its factorization.

34404013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8427.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 34404013 is about 5865.4934148799. The cubic root of 34404013 is about 325.2393124973.

Adding to 34404013 its reverse (31040443), we get a palindrome (65444456).

The spelling of 34404013 in words is "thirty-four million, four hundred four thousand, thirteen".

Divisors: 1 7 631 4417 7789 54523 4914859 34404013