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2102424211 = 2557822223
BaseRepresentation
bin111110101010000…
…0111001010010011
312102112002012211101
41331110013022103
513301210033321
6544342125231
7103046211436
oct17524071223
95375065741
102102424211
11989844478
124a8120817
132767593c4
1415d31b81d
15c4895791
hex7d507293

2102424211 has 4 divisors (see below), whose sum is σ = 2103248992. Its totient is φ = 2101599432.

The previous prime is 2102424179. The next prime is 2102424253. The reversal of 2102424211 is 1124242012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2102424211 - 25 = 2102424179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102424911) 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, 408555 + ... + 413668.

It is an arithmetic number, because the mean of its divisors is an integer number (525812248).

Almost surely, 22102424211 is an apocalyptic number.

2102424211 is a deficient number, since it is larger than the sum of its proper divisors (824781).

2102424211 is an equidigital number, since it uses as much as digits as its factorization.

2102424211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824780.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 2102424211 is about 45852.1996309883. The cubic root of 2102424211 is about 1281.0717364648.

Adding to 2102424211 its reverse (1124242012), we get a palindrome (3226666223).

The spelling of 2102424211 in words is "two billion, one hundred two million, four hundred twenty-four thousand, two hundred eleven".

Divisors: 1 2557 822223 2102424211