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123030111320 = 2357873390671
BaseRepresentation
bin111001010010100101…
…0101000010001011000
3102202120011212012210122
41302211022220101120
54003431202030240
6132304054132412
711613541456124
oct1624512502130
9382504765718
10123030111320
11481a4321656
121ba16651108
13b7a8bb244c
145d5194a584
153300ee64b5
hex1ca52a8458

123030111320 has 32 divisors (see below), whose sum is σ = 276853619520. Its totient is φ = 49205667840.

The previous prime is 123030111301. The next prime is 123030111359. The reversal of 123030111320 is 23111030321.

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, 119585 + ... + 510255.

It is an arithmetic number, because the mean of its divisors is an integer number (8651675610).

Almost surely, 2123030111320 is an apocalyptic number.

123030111320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123030111320 is an abundant number, since it is smaller than the sum of its proper divisors (153823508200).

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

123030111320 is a wasteful number, since it uses less digits than its factorization.

123030111320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398555 (or 398551 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 123030111320 its reverse (23111030321), we get a palindrome (146141141641).

The spelling of 123030111320 in words is "one hundred twenty-three billion, thirty million, one hundred eleven thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 7873 15746 31492 39365 62984 78730 157460 314920 390671 781342 1562684 1953355 3125368 3906710 7813420 15626840 3075752783 6151505566 12303011132 15378763915 24606022264 30757527830 61515055660 123030111320