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34187429 is a prime number
BaseRepresentation
bin1000001001101…
…0100010100101
32101022220100002
42002122202211
532222444204
63220431045
7563405543
oct202324245
971286302
1034187429
1118330581
12b548485
13710cc63
14477cd93
15300491e
hex209a8a5

34187429 has 2 divisors, whose sum is σ = 34187430. Its totient is φ = 34187428.

The previous prime is 34187411. The next prime is 34187431. The reversal of 34187429 is 92478143.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28111204 + 6076225 = 5302^2 + 2465^2 .

It is an emirp because it is prime and its reverse (92478143) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-34187429 is a prime.

Together with 34187431, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 34187392 and 34187401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34187029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17093714 + 17093715.

It is an arithmetic number, because the mean of its divisors is an integer number (17093715).

Almost surely, 234187429 is an apocalyptic number.

It is an amenable number.

34187429 is a deficient number, since it is larger than the sum of its proper divisors (1).

34187429 is an equidigital number, since it uses as much as digits as its factorization.

34187429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 38.

The square root of 34187429 is about 5847.0017102785. The cubic root of 34187429 is about 324.5553809671. Note that the first 3 decimals are identical.

The spelling of 34187429 in words is "thirty-four million, one hundred eighty-seven thousand, four hundred twenty-nine".