Search a number
-
+
20334230420 = 2257209969197
BaseRepresentation
bin10010111100000000…
…111011101110010100
31221111010102221012012
4102330000323232110
5313121030333140
613201425043352
71316621051420
oct227400735624
957433387165
1020334230420
118695163309
123b35a86558
131bc09cc10a
14dac849b80
157e028c265
hex4bc03bb94

20334230420 has 48 divisors (see below), whose sum is σ = 48826108800. Its totient is φ = 6968313984.

The previous prime is 20334230419. The next prime is 20334230429. The reversal of 20334230420 is 2403243302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20334230429) 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 15 ways as a sum of consecutive naturals, for example, 259262 + ... + 328458.

It is an arithmetic number, because the mean of its divisors is an integer number (1017210600).

Almost surely, 220334230420 is an apocalyptic number.

20334230420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20334230420 is an abundant number, since it is smaller than the sum of its proper divisors (28491878380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20334230420 is a wasteful number, since it uses less digits than its factorization.

20334230420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71312 (or 71310 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 20334230420 its reverse (2403243302), we get a palindrome (22737473722).

The spelling of 20334230420 in words is "twenty billion, three hundred thirty-four million, two hundred thirty thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 2099 4198 8396 10495 14693 20990 29386 41980 58772 69197 73465 138394 146930 276788 293860 345985 484379 691970 968758 1383940 1937516 2421895 4843790 9687580 145244503 290489006 580978012 726222515 1016711521 1452445030 2033423042 2904890060 4066846084 5083557605 10167115210 20334230420