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131212332022 = 2149569773831
BaseRepresentation
bin111101000110011011…
…1010100101111110110
3110112200102011002111211
41322030313110233312
54122210324111042
6140140023352034
712323364264022
oct1721467245766
9415612132454
10131212332022
1150712a39122
122151a8b261a
13c4b10c6165
1464ca4c9382
15362e4d8017
hex1e8cdd4bf6

131212332022 has 16 divisors (see below), whose sum is σ = 198487908000. Its totient is φ = 65051245120.

The previous prime is 131212332011. The next prime is 131212332049. The reversal of 131212332022 is 220233212131.

It is a junction number, because it is equal to n+sod(n) for n = 131212331984 and 131212332002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217354 + ... + 556477.

It is an arithmetic number, because the mean of its divisors is an integer number (12405494250).

Almost surely, 2131212332022 is an apocalyptic number.

131212332022 is a deficient number, since it is larger than the sum of its proper divisors (67275575978).

131212332022 is a wasteful number, since it uses less digits than its factorization.

131212332022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774551.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 131212332022 its reverse (220233212131), we get a palindrome (351445544153).

The spelling of 131212332022 in words is "one hundred thirty-one billion, two hundred twelve million, three hundred thirty-two thousand, twenty-two".

Divisors: 1 2 149 298 569 1138 84781 169562 773831 1547662 115300819 230601638 440309839 880619678 65606166011 131212332022