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34309481 = 54762723
BaseRepresentation
bin1000001011100…
…0010101101001
32101120002202112
42002320111221
532240400411
63223212105
7564424433
oct202702551
971502675
1034309481
1118404248
12b5a7035
13715368b
1447b1653
15302ab8b
hex20b8569

34309481 has 4 divisors (see below), whose sum is σ = 34372752. Its totient is φ = 34246212.

The previous prime is 34309477. The next prime is 34309501. The reversal of 34309481 is 18490343.

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, and also an emirpimes, since its reverse is a distinct semiprime: 18490343 = 37499739.

It is a cyclic number.

It is not a de Polignac number, because 34309481 - 22 = 34309477 is a prime.

It is a super-2 number, since 2×343094812 = 2354280972978722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34309081) 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, 30815 + ... + 31908.

It is an arithmetic number, because the mean of its divisors is an integer number (8593188).

Almost surely, 234309481 is an apocalyptic number.

It is an amenable number.

34309481 is a deficient number, since it is larger than the sum of its proper divisors (63271).

34309481 is an equidigital number, since it uses as much as digits as its factorization.

34309481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63270.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 34309481 is about 5857.4295557010. The cubic root of 34309481 is about 324.9411522642.

The spelling of 34309481 in words is "thirty-four million, three hundred nine thousand, four hundred eighty-one".

Divisors: 1 547 62723 34309481