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2102230231 = 19113038447
BaseRepresentation
bin111110101001101…
…0111110011010111
312102111201100201221
41331103113303113
513301132331411
6544334031211
7103044443053
oct17523276327
95374640657
102102230231
11989721762
124a8048507
132766bc01a
1415d2aac63
15c4858071
hex7d4d7cd7

2102230231 has 8 divisors (see below), whose sum is σ = 2115108864. Its totient is φ = 2089371480.

The previous prime is 2102230223. The next prime is 2102230253. The reversal of 2102230231 is 1320322012.

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 2102230231 - 23 = 2102230223 is a prime.

It is a super-2 number, since 2×21022302312 = 8838743888260626722, 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 (2102230201) 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, 244650 + ... + 253096.

It is an arithmetic number, because the mean of its divisors is an integer number (264388608).

Almost surely, 22102230231 is an apocalyptic number.

2102230231 is a deficient number, since it is larger than the sum of its proper divisors (12878633).

2102230231 is a wasteful number, since it uses less digits than its factorization.

2102230231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9941.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2102230231 is about 45850.0843074470. The cubic root of 2102230231 is about 1281.0323359263.

Adding to 2102230231 its reverse (1320322012), we get a palindrome (3422552243).

The spelling of 2102230231 in words is "two billion, one hundred two million, two hundred thirty thousand, two hundred thirty-one".

Divisors: 1 191 1303 8447 248873 1613377 11006441 2102230231