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2102321033 = 13728975297
BaseRepresentation
bin111110101001110…
…1101111110001001
312102111212222021222
41331103231332021
513301143233113
6544340011425
7103045301561
oct17523557611
95374788258
102102321033
119897839aa
124a8090b75
13276721457
1415d2d1da1
15c4874e08
hex7d4edf89

2102321033 has 8 divisors (see below), whose sum is σ = 2118797352. Its totient is φ = 2085861376.

The previous prime is 2102320991. The next prime is 2102321051. The reversal of 2102321033 is 3301232012.

It can be written as a sum of positive squares in 4 ways, for example, as 298874944 + 1803446089 = 17288^2 + 42467^2 .

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 2102321033 - 28 = 2102320777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2102321933) 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, 394241 + ... + 399537.

It is an arithmetic number, because the mean of its divisors is an integer number (264849669).

Almost surely, 22102321033 is an apocalyptic number.

It is an amenable number.

2102321033 is a deficient number, since it is larger than the sum of its proper divisors (16476319).

2102321033 is a wasteful number, since it uses less digits than its factorization.

2102321033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8331.

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

The square root of 2102321033 is about 45851.0745021314. The cubic root of 2102321033 is about 1281.0507796124.

Adding to 2102321033 its reverse (3301232012), we get a palindrome (5403553045).

The spelling of 2102321033 in words is "two billion, one hundred two million, three hundred twenty-one thousand, thirty-three".

Divisors: 1 137 2897 5297 396889 725689 15345409 2102321033