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2100331231 = 19412696189
BaseRepresentation
bin111110100110000…
…1000001011011111
312102101010212210121
41331030020023133
513300141044411
6544225215411
7103022343445
oct17514101337
95371125717
102100331231
11988644a39
124a7491567
132761a585b
1415cd34b95
15c45d0571
hex7d3082df

2100331231 has 8 divisors (see below), whose sum is σ = 2264799600. Its totient is φ = 1941255360.

The previous prime is 2100331229. The next prime is 2100331237. The reversal of 2100331231 is 1321330012.

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 2100331231 - 21 = 2100331229 is a prime.

It is a super-2 number, since 2×21003312312 = 8822782559827950722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100331237) 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 7 ways as a sum of consecutive naturals, for example, 1347316 + ... + 1348873.

It is an arithmetic number, because the mean of its divisors is an integer number (283099950).

Almost surely, 22100331231 is an apocalyptic number.

2100331231 is a deficient number, since it is larger than the sum of its proper divisors (164468369).

2100331231 is a wasteful number, since it uses less digits than its factorization.

2100331231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2696249.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 2100331231 is about 45829.3708335604. The cubic root of 2100331231 is about 1280.6464896253.

Adding to 2100331231 its reverse (1321330012), we get a palindrome (3421661243).

The spelling of 2100331231 in words is "two billion, one hundred million, three hundred thirty-one thousand, two hundred thirty-one".

Divisors: 1 19 41 779 2696189 51227591 110543749 2100331231