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34474813 = 43377949
BaseRepresentation
bin1000001110000…
…0101100111101
32101212111112221
42003200230331
532311143223
63230525341
7566013442
oct203405475
971774487
1034474813
111850748a
12b666851
1371b09c9
1448159c9
15305eb5d
hex20e0b3d

34474813 has 4 divisors (see below), whose sum is σ = 34487100. Its totient is φ = 34462528.

The previous prime is 34474757. The next prime is 34474819. The reversal of 34474813 is 31847443.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 31847443 = 171873379.

It can be written as a sum of positive squares in 2 ways, for example, as 6140484 + 28334329 = 2478^2 + 5323^2 .

It is a cyclic number.

It is not a de Polignac number, because 34474813 - 217 = 34343741 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 (34474819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363 + ... + 8311.

It is an arithmetic number, because the mean of its divisors is an integer number (8621775).

Almost surely, 234474813 is an apocalyptic number.

It is an amenable number.

34474813 is a deficient number, since it is larger than the sum of its proper divisors (12287).

34474813 is an equidigital number, since it uses as much as digits as its factorization.

34474813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12286.

The product of its digits is 32256, while the sum is 34.

The square root of 34474813 is about 5871.5256109464. The cubic root of 34474813 is about 325.4622628999.

It can be divided in two parts, 344 and 74813, that added together give a palindrome (75157).

The spelling of 34474813 in words is "thirty-four million, four hundred seventy-four thousand, eight hundred thirteen".

Divisors: 1 4337 7949 34474813