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20031000330 = 2351160700001
BaseRepresentation
bin10010101001111100…
…001100111100001010
31220200222212020201010
4102221330030330022
5312010414002310
613111353504350
71306246456605
oct225174147412
956628766633
1020031000330
118549a83030
123a704120b6
131b72c40023
14d8047533c
157c3841320
hex4a9f0cf0a

20031000330 has 32 divisors (see below), whose sum is σ = 52444801728. Its totient is φ = 4856000000.

The previous prime is 20031000313. The next prime is 20031000337. The reversal of 20031000330 is 3300013002.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20031000337) 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, 30349671 + ... + 30350330.

It is an arithmetic number, because the mean of its divisors is an integer number (1638900054).

Almost surely, 220031000330 is an apocalyptic number.

20031000330 is an abundant number, since it is smaller than the sum of its proper divisors (32413801398).

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

20031000330 is a wasteful number, since it uses less digits than its factorization.

20031000330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60700022.

The product of its (nonzero) digits is 54, while the sum is 12.

Adding to 20031000330 its reverse (3300013002), we get a palindrome (23331013332).

The spelling of 20031000330 in words is "twenty billion, thirty-one million, three hundred thirty", and thus it is an aban number.

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 60700001 121400002 182100003 303500005 364200006 607000010 667700011 910500015 1335400022 1821000030 2003100033 3338500055 4006200066 6677000110 10015500165 20031000330