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34212113 = 132631701
BaseRepresentation
bin1000001010000…
…0100100010001
32101101011012022
42002200210101
532224241423
63221141225
7563540525
oct202404421
971334168
1034212113
1118348081
12b55a815
13711b270
144787d85
15300bdc8
hex20a0911

34212113 has 4 divisors (see below), whose sum is σ = 36843828. Its totient is φ = 31580400.

The previous prime is 34212043. The next prime is 34212137. The reversal of 34212113 is 31121243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31121243 = 45768099.

It can be written as a sum of positive squares in 2 ways, for example, as 19642624 + 14569489 = 4432^2 + 3817^2 .

It is a cyclic number.

It is not a de Polignac number, because 34212113 - 28 = 34211857 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34212091 and 34212100.

It is not an unprimeable number, because it can be changed into a prime (34212413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1315838 + ... + 1315863.

It is an arithmetic number, because the mean of its divisors is an integer number (9210957).

Almost surely, 234212113 is an apocalyptic number.

It is an amenable number.

34212113 is a deficient number, since it is larger than the sum of its proper divisors (2631715).

34212113 is a wasteful number, since it uses less digits than its factorization.

34212113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2631714.

The product of its digits is 144, while the sum is 17.

The square root of 34212113 is about 5849.1121548488. The cubic root of 34212113 is about 324.6334739770.

Adding to 34212113 its reverse (31121243), we get a palindrome (65333356).

The spelling of 34212113 in words is "thirty-four million, two hundred twelve thousand, one hundred thirteen".

Divisors: 1 13 2631701 34212113