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130223120312 = 2379552137321
BaseRepresentation
bin111100101000111100…
…1110001111110111000
3110110010110202221011002
41321101321301332320
54113144104322222
6135453525224132
712260023154615
oct1712171617670
9413113687132
10130223120312
115025561378a
12212a3562048
13c38419559c
146434d8950c
1535c2738392
hex1e51e71fb8

130223120312 has 32 divisors (see below), whose sum is σ = 247310500800. Its totient is φ = 64273996800.

The previous prime is 130223120309. The next prime is 130223120381. The reversal of 130223120312 is 213021322031.

It is a super-2 number, since 2×1302231203122 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3470612 + ... + 3507932.

It is an arithmetic number, because the mean of its divisors is an integer number (7728453150).

Almost surely, 2130223120312 is an apocalyptic number.

It is an amenable number.

130223120312 is a deficient number, since it is larger than the sum of its proper divisors (117087380488).

130223120312 is a wasteful number, since it uses less digits than its factorization.

130223120312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42927 (or 42923 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 130223120312 its reverse (213021322031), we get a palindrome (343244442343).

The spelling of 130223120312 in words is "one hundred thirty billion, two hundred twenty-three million, one hundred twenty thousand, three hundred twelve".

Divisors: 1 2 4 8 79 158 316 632 5521 11042 22084 37321 44168 74642 149284 298568 436159 872318 1744636 2948359 3489272 5896718 11793436 23586872 206049241 412098482 824196964 1648393928 16277890039 32555780078 65111560156 130223120312