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131022302212 = 2243761757571
BaseRepresentation
bin111101000000110001…
…0011010110000000100
3110112012011120120121201
41322001202122300010
54121313202132322
6140105114352244
712315566123164
oct1720142326004
9415164516551
10131022302212
115062574599a
122148712b684
13c48091cc99
1464ad1805a4
15361c99cd27
hex1e8189ac04

131022302212 has 12 divisors (see below), whose sum is σ = 234621332176. Its totient is φ = 63987635880.

The previous prime is 131022302197. The next prime is 131022302219. The reversal of 131022302212 is 212203220131.

It is a self number, because there is not a number n which added to its sum of digits gives 131022302212.

It is not an unprimeable number, because it can be changed into a prime (131022302219) 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, 380878614 + ... + 380878957.

Almost surely, 2131022302212 is an apocalyptic number.

It is an amenable number.

131022302212 is a deficient number, since it is larger than the sum of its proper divisors (103599029964).

131022302212 is a wasteful number, since it uses less digits than its factorization.

131022302212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761757618 (or 761757616 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 131022302212 its reverse (212203220131), we get a palindrome (343225522343).

The spelling of 131022302212 in words is "one hundred thirty-one billion, twenty-two million, three hundred two thousand, two hundred twelve".

Divisors: 1 2 4 43 86 172 761757571 1523515142 3047030284 32755575553 65511151106 131022302212