Search a number
-
+
213111302030210 = 2521311130203021
BaseRepresentation
bin110000011101001011010111…
…011101001000001110000010
31000221120020112001112112220002
4300131023113131020032002
5210413103421304431320
62033125551450520002
762613532505614133
oct6035132735101602
91027506461475802
10213111302030210
11619a3aa5217781
121ba9a493a36002
1391bb40411026c
143a8a8dbb1bc8a
1519987a9cb0675
hexc1d2d7748382

213111302030210 has 8 divisors (see below), whose sum is σ = 383600343654396. Its totient is φ = 85244520812080.

The previous prime is 213111302030197. The next prime is 213111302030213. The reversal of 213111302030210 is 12030203111312.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 192932905620841 + 20178396409369 = 13890029^2 + 4492037^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2131113020302102 (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213111302030213) 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, 10655565101501 + ... + 10655565101520.

Almost surely, 2213111302030210 is an apocalyptic number.

213111302030210 is a deficient number, since it is larger than the sum of its proper divisors (170489041624186).

213111302030210 is a wasteful number, since it uses less digits than its factorization.

213111302030210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21311130203028.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 213111302030210 its reverse (12030203111312), we get a palindrome (225141505141522).

The spelling of 213111302030210 in words is "two hundred thirteen trillion, one hundred eleven billion, three hundred two million, thirty thousand, two hundred ten".

Divisors: 1 2 5 10 21311130203021 42622260406042 106555651015105 213111302030210