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2102131333 = 13915123247
BaseRepresentation
bin111110101001011…
…1111101010000101
312102111112100002001
41331102333222011
513301121200313
6544331545301
7103043551531
oct17522775205
95374470061
102102131333
11989664425
124a7bbb231
13276685cc3
1415d282bc1
15c4838add
hex7d4bfa85

2102131333 has 4 divisors (see below), whose sum is σ = 2117254720. Its totient is φ = 2087007948.

The previous prime is 2102131331. The next prime is 2102131337. The reversal of 2102131333 is 3331312012.

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 2102131333 - 21 = 2102131331 is a prime.

It is a super-2 number, since 2×21021313332 = 8837912282360713778, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2102131333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102131331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7561485 + ... + 7561762.

It is an arithmetic number, because the mean of its divisors is an integer number (529313680).

Almost surely, 22102131333 is an apocalyptic number.

It is an amenable number.

2102131333 is a deficient number, since it is larger than the sum of its proper divisors (15123387).

2102131333 is a wasteful number, since it uses less digits than its factorization.

2102131333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15123386.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 2102131333 is about 45849.0058016529. The cubic root of 2102131333 is about 1281.0122471778.

Adding to 2102131333 its reverse (3331312012), we get a palindrome (5433443345).

The spelling of 2102131333 in words is "two billion, one hundred two million, one hundred thirty-one thousand, three hundred thirty-three".

Divisors: 1 139 15123247 2102131333