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212502514331 = 7383211166219
BaseRepresentation
bin1100010111101000100…
…0110000101010011011
3202022111122222012220202
43011322020300222123
511440201120424311
6241342230212415
721232003366052
oct3057210605233
9668448865822
10212502514331
1182138147278
12352267b410b
1317067609353
14a3dc74b399
1557dada7e3b
hex317a230a9b

212502514331 has 16 divisors (see below), whose sum is σ = 219043386240. Its totient is φ = 206083725120.

The previous prime is 212502514307. The next prime is 212502514333. The reversal of 212502514331 is 133415205212.

It is a cyclic number.

It is not a de Polignac number, because 212502514331 - 218 = 212502252187 is a prime.

It is a super-2 number, since 2×2125025143312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212502514294 and 212502514303.

It is not an unprimeable number, because it can be changed into a prime (212502514333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1195340 + ... + 1361558.

It is an arithmetic number, because the mean of its divisors is an integer number (13690211640).

Almost surely, 2212502514331 is an apocalyptic number.

212502514331 is a deficient number, since it is larger than the sum of its proper divisors (6540871909).

212502514331 is a wasteful number, since it uses less digits than its factorization.

212502514331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166586.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 212502514331 its reverse (133415205212), we get a palindrome (345917719543).

The spelling of 212502514331 in words is "two hundred twelve billion, five hundred two million, five hundred fourteen thousand, three hundred thirty-one".

Divisors: 1 73 83 211 6059 15403 17513 166219 1278449 12133987 13796177 35072209 1007120921 2560271257 2910993347 212502514331