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20303234 = 271450231
BaseRepresentation
bin100110101110…
…0110110000010
31102012111210122
41031130312002
520144200414
62003100242
7334401050
oct115346602
942174718
1020303234
1110508136
126971682
13428b463
1429a71d0
151bb0b8e
hex135cd82

20303234 has 8 divisors (see below), whose sum is σ = 34805568. Its totient is φ = 8701380.

The previous prime is 20303203. The next prime is 20303249. The reversal of 20303234 is 43230302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-4 number, since 4×203032344 (a number of 30 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 725102 + ... + 725129.

It is an arithmetic number, because the mean of its divisors is an integer number (4350696).

Almost surely, 220303234 is an apocalyptic number.

20303234 is a deficient number, since it is larger than the sum of its proper divisors (14502334).

20303234 is a wasteful number, since it uses less digits than its factorization.

20303234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450240.

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 20303234 is about 4505.9110066667. The cubic root of 20303234 is about 272.8067258542.

Adding to 20303234 its reverse (43230302), we get a palindrome (63533536).

The spelling of 20303234 in words is "twenty million, three hundred three thousand, two hundred thirty-four".

Divisors: 1 2 7 14 1450231 2900462 10151617 20303234