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1312112222230 = 256112329174467
BaseRepresentation
bin10011000101111111111…
…110111010000000010110
311122102210100122002112111
4103011333332322000112
5132444201212102410
62442435342341234
7163540235603545
oct23057776720026
94572710562474
101312112222230
11466511163007
1219236788a81a
1396968591944
144771405a15c
15241e7461b8a
hex1317ffba016

1312112222230 has 32 divisors (see below), whose sum is σ = 2400728531040. Its totient is φ = 516196043520.

The previous prime is 1312112222219. The next prime is 1312112222251. The reversal of 1312112222230 is 322222112131.

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 15 ways as a sum of consecutive naturals, for example, 7433457 + ... + 7607923.

It is an arithmetic number, because the mean of its divisors is an integer number (75022766595).

Almost surely, 21312112222230 is an apocalyptic number.

1312112222230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312112222230 is a deficient number, since it is larger than the sum of its proper divisors (1088616308810).

1312112222230 is a wasteful number, since it uses less digits than its factorization.

1312112222230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186864.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1312112222230 its reverse (322222112131), we get a palindrome (1634334334361).

The spelling of 1312112222230 in words is "one trillion, three hundred twelve billion, one hundred twelve million, two hundred twenty-two thousand, two hundred thirty".

Divisors: 1 2 5 10 61 122 305 610 12329 24658 61645 123290 174467 348934 752069 872335 1504138 1744670 3760345 7520690 10642487 21284974 53212435 106424870 2151003643 4302007286 10755018215 21510036430 131211222223 262422444446 656056111115 1312112222230