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2031022123 = 131371140383
BaseRepresentation
bin111100100001110…
…1111000000101011
312020112201121120121
41321003233000223
513124420201443
6533311504111
7101221255204
oct17103570053
95215647517
102031022123
11952505a89
12488228037
13264a19650
14153a525ab
15bd48e4ed
hex790ef02b

2031022123 has 8 divisors (see below), whose sum is σ = 2203221888. Its totient is φ = 1861103424.

The previous prime is 2031022109. The next prime is 2031022127. The reversal of 2031022123 is 3212201302.

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

It is a cyclic number.

It is not a de Polignac number, because 2031022123 - 221 = 2028924971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2031022097 and 2031022106.

It is not an unprimeable number, because it can be changed into a prime (2031022127) 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, 568411 + ... + 571972.

It is an arithmetic number, because the mean of its divisors is an integer number (275402736).

Almost surely, 22031022123 is an apocalyptic number.

2031022123 is a deficient number, since it is larger than the sum of its proper divisors (172199765).

2031022123 is a wasteful number, since it uses less digits than its factorization.

2031022123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140533.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2031022123 is about 45066.8628040604. The cubic root of 2031022123 is about 1266.4018938809.

Adding to 2031022123 its reverse (3212201302), we get a palindrome (5243223425).

The spelling of 2031022123 in words is "two billion, thirty-one million, twenty-two thousand, one hundred twenty-three".

Divisors: 1 13 137 1781 1140383 14824979 156232471 2031022123