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2142044031 = 3714014677
BaseRepresentation
bin111111110101100…
…1111111101111111
312112021122010000010
41333223033331333
513341330402111
6552315234303
7104040034221
oct17753177577
95467563003
102142044031
119aa145426
124b9448993
13281a1bb9a
141646b2411
15c80beaa6
hex7facff7f

2142044031 has 4 divisors (see below), whose sum is σ = 2856058712. Its totient is φ = 1428029352.

The previous prime is 2142044017. The next prime is 2142044033. The reversal of 2142044031 is 1304402412.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2142044031 - 27 = 2142043903 is a prime.

It is a super-2 number, since 2×21420440312 = 9176705261485457922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2142043989 and 2142044007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142044033) 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, 357007336 + ... + 357007341.

It is an arithmetic number, because the mean of its divisors is an integer number (714014678).

Almost surely, 22142044031 is an apocalyptic number.

2142044031 is a deficient number, since it is larger than the sum of its proper divisors (714014681).

2142044031 is an equidigital number, since it uses as much as digits as its factorization.

2142044031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714014680.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2142044031 is about 46282.2215434825. The cubic root of 2142044031 is about 1289.0689014546.

Adding to 2142044031 its reverse (1304402412), we get a palindrome (3446446443).

The spelling of 2142044031 in words is "two billion, one hundred forty-two million, forty-four thousand, thirty-one".

Divisors: 1 3 714014677 2142044031