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3031143020 = 225151557151
BaseRepresentation
bin1011010010101011…
…1001001001101100
321211020122000112022
42310222321021230
522201433034040
61220435525312
7135054201443
oct26452711154
97736560468
103031143020
111316001684
12707159838
13393c99869
1420a7d1d5a
1512b1966b5
hexb4ab926c

3031143020 has 12 divisors (see below), whose sum is σ = 6365400384. Its totient is φ = 1212457200.

The previous prime is 3031143001. The next prime is 3031143023. The reversal of 3031143020 is 203411303.

It is a happy number.

3031143020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 3031143020.

It is not an unprimeable number, because it can be changed into a prime (3031143023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75778556 + ... + 75778595.

It is an arithmetic number, because the mean of its divisors is an integer number (530450032).

Almost surely, 23031143020 is an apocalyptic number.

It is an amenable number.

3031143020 is an abundant number, since it is smaller than the sum of its proper divisors (3334257364).

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

3031143020 is a wasteful number, since it uses less digits than its factorization.

3031143020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151557160 (or 151557158 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 3031143020 is about 55055.8173129779. The cubic root of 3031143020 is about 1447.2230673038.

Adding to 3031143020 its reverse (203411303), we get a palindrome (3234554323).

The spelling of 3031143020 in words is "three billion, thirty-one million, one hundred forty-three thousand, twenty".

Divisors: 1 2 4 5 10 20 151557151 303114302 606228604 757785755 1515571510 3031143020