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2102131133 = 14947140639
BaseRepresentation
bin111110101001011…
…1111100110111101
312102111112022210122
41331102333212331
513301121144013
6544331544325
7103043551124
oct17522774675
95374468718
102102131133
11989664263
124a7bbb0a5
13276685b9b
1415d282abb
15c4838a08
hex7d4bf9bd

2102131133 has 4 divisors (see below), whose sum is σ = 2102286720. Its totient is φ = 2101975548.

The previous prime is 2102131121. The next prime is 2102131159. The reversal of 2102131133 is 3311312012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2102131133 - 224 = 2085353917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102130133) 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, 55373 + ... + 85266.

It is an arithmetic number, because the mean of its divisors is an integer number (525571680).

Almost surely, 22102131133 is an apocalyptic number.

It is an amenable number.

2102131133 is a deficient number, since it is larger than the sum of its proper divisors (155587).

2102131133 is a wasteful number, since it uses less digits than its factorization.

2102131133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155586.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2102131133 is about 45849.0036205805. The cubic root of 2102131133 is about 1281.0122065520.

Adding to 2102131133 its reverse (3311312012), we get a palindrome (5413443145).

The spelling of 2102131133 in words is "two billion, one hundred two million, one hundred thirty-one thousand, one hundred thirty-three".

Divisors: 1 14947 140639 2102131133