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354230009 = 750604287
BaseRepresentation
bin10101000111010…
…001111011111001
3220200112202012222
4111013101323321
51211140330014
655052213425
711530622360
oct2507217371
9820482188
10354230009
11171a54281
129a76a275
1358507673
143508c7d7
152117208e
hex151d1ef9

354230009 has 4 divisors (see below), whose sum is σ = 404834304. Its totient is φ = 303625716.

The previous prime is 354229991. The next prime is 354230017. The reversal of 354230009 is 900032453.

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: 900032453 = 4649193597.

It is a cyclic number.

It is not a de Polignac number, because 354230009 - 212 = 354225913 is a prime.

It is a super-3 number, since 3×3542300093 (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 354230009.

It is not an unprimeable number, because it can be changed into a prime (354230069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25302137 + ... + 25302150.

It is an arithmetic number, because the mean of its divisors is an integer number (101208576).

Almost surely, 2354230009 is an apocalyptic number.

It is an amenable number.

354230009 is a deficient number, since it is larger than the sum of its proper divisors (50604295).

354230009 is an equidigital number, since it uses as much as digits as its factorization.

354230009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50604294.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 354230009 is about 18820.9991498857. Note that the first 3 decimals coincide. The cubic root of 354230009 is about 707.5575726768.

The spelling of 354230009 in words is "three hundred fifty-four million, two hundred thirty thousand, nine".

Divisors: 1 7 50604287 354230009