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213124414231 = 3072158732159
BaseRepresentation
bin1100011001111100110…
…1000111101100010111
3202101010000012000012101
43012133031013230113
511442434322223411
6241524043502531
721253264426231
oct3063715075427
9671100160171
10213124414231
11824271a2933
123537ab27a47
1317136402061
14a45b195251
15582579e8c1
hex319f347b17

213124414231 has 8 divisors (see below), whose sum is σ = 213835184640. Its totient is φ = 212413751928.

The previous prime is 213124414207. The next prime is 213124414247. The reversal of 213124414231 is 132414421312.

It is a happy number.

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 213124414231 - 211 = 213124412183 is a prime.

It is a super-2 number, since 2×2131244142312 (a number of 23 digits) 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 213124414231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213124424231) 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, 6611130 + ... + 6643288.

It is an arithmetic number, because the mean of its divisors is an integer number (26729398080).

Almost surely, 2213124414231 is an apocalyptic number.

213124414231 is a deficient number, since it is larger than the sum of its proper divisors (710770409).

213124414231 is a wasteful number, since it uses less digits than its factorization.

213124414231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54053.

The product of its digits is 4608, while the sum is 28.

Adding to 213124414231 its reverse (132414421312), we get a palindrome (345538835543).

The spelling of 213124414231 in words is "two hundred thirteen billion, one hundred twenty-four million, four hundred fourteen thousand, two hundred thirty-one".

Divisors: 1 307 21587 32159 6627209 9872813 694216333 213124414231