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20330210031 = 316074217011
BaseRepresentation
bin10010111011110001…
…100110001011101111
31221110211212200020220
4102323301212023233
5313114013210111
613201202542423
71316541635235
oct227361461357
957424780226
1020330210031
11869296777a
123b34667a13
131bbcc221a1
14dac0c0955
157dec45e06
hex4bbc662ef

20330210031 has 8 divisors (see below), whose sum is σ = 27123821184. Its totient is φ = 13545036120.

The previous prime is 20330210027. The next prime is 20330210171. The reversal of 20330210031 is 13001203302.

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

It is not a de Polignac number, because 20330210031 - 22 = 20330210027 is a prime.

It is a super-2 number, since 2×203302100312 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20330210231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2103685 + ... + 2113326.

It is an arithmetic number, because the mean of its divisors is an integer number (3390477648).

Almost surely, 220330210031 is an apocalyptic number.

20330210031 is a deficient number, since it is larger than the sum of its proper divisors (6793611153).

20330210031 is a wasteful number, since it uses less digits than its factorization.

20330210031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4218621.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20330210031 its reverse (13001203302), we get a palindrome (33331413333).

The spelling of 20330210031 in words is "twenty billion, three hundred thirty million, two hundred ten thousand, thirty-one".

Divisors: 1 3 1607 4821 4217011 12651033 6776736677 20330210031