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23013113112 = 233211171709233
BaseRepresentation
bin10101011011101100…
…000011110100011000
32012101211020021101200
4111123230003310120
5334112324104422
614323322514200
71443200143143
oct253354036430
965354207350
1023013113112
11983a336550
124563065960
132229a009c2
14118454305a
158ea5502ac
hex55bb03d18

23013113112 has 96 divisors (see below), whose sum is σ = 71992936080. Its totient is φ = 6563450880.

The previous prime is 23013113107. The next prime is 23013113113. The reversal of 23013113112 is 21131131032.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23013113113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 841153 + ... + 868080.

Almost surely, 223013113112 is an apocalyptic number.

23013113112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23013113112 is an abundant number, since it is smaller than the sum of its proper divisors (48979822968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23013113112 is a wasteful number, since it uses less digits than its factorization.

23013113112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709273 (or 1709266 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 23013113112 its reverse (21131131032), we get a palindrome (44144244144).

The spelling of 23013113112 in words is "twenty-three billion, thirteen million, one hundred thirteen thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 9 11 12 17 18 22 24 33 34 36 44 51 66 68 72 88 99 102 132 136 153 187 198 204 264 306 374 396 408 561 612 748 792 1122 1224 1496 1683 2244 3366 4488 6732 13464 1709233 3418466 5127699 6836932 10255398 13673864 15383097 18801563 20510796 29056961 30766194 37603126 41021592 56404689 58113922 61532388 75206252 87170883 112809378 116227844 123064776 150412504 169214067 174341766 225618756 232455688 261512649 319626571 338428134 348683532 451237512 523025298 639253142 676856268 697367064 958879713 1046050596 1278506284 1353712536 1917759426 2092101192 2557012568 2876639139 3835518852 5753278278 7671037704 11506556556 23013113112