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20030662 = 271141061
BaseRepresentation
bin100110001101…
…0010011000110
31101200122220101
41030122103012
520111440122
61553154314
7332154301
oct114322306
941618811
1020030662
1110341373
12685b99a
1341c4382
142935b38
151b5a027
hex131a4c6

20030662 has 8 divisors (see below), whose sum is σ = 30469392. Its totient is φ = 9874200.

The previous prime is 20030657. The next prime is 20030663. The reversal of 20030662 is 26603002.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20030663) 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, 70389 + ... + 70672.

It is an arithmetic number, because the mean of its divisors is an integer number (3808674).

Almost surely, 220030662 is an apocalyptic number.

20030662 is a deficient number, since it is larger than the sum of its proper divisors (10438730).

20030662 is a wasteful number, since it uses less digits than its factorization.

20030662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141134.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 20030662 is about 4475.5627579110. The cubic root of 20030662 is about 271.5804066197.

Adding to 20030662 its reverse (26603002), we get a palindrome (46633664).

The spelling of 20030662 in words is "twenty million, thirty thousand, six hundred sixty-two".

Divisors: 1 2 71 142 141061 282122 10015331 20030662