Search a number
-
+
123030473048 = 23783211312527
BaseRepresentation
bin111001010010100110…
…0000000100101011000
3102202120012112120222222
41302211030000211120
54003431300114143
6132304110003212
711613544523540
oct1624514004530
9382505476888
10123030473048
11481a45493aa
121ba167a6508
13b7a8caaca2
145d51a02320
153301068768
hex1ca5300958

123030473048 has 64 divisors (see below), whose sum is σ = 266960655360. Its totient is φ = 52063266816.

The previous prime is 123030473009. The next prime is 123030473081. The reversal of 123030473048 is 840374030321.

It is a Cunningham number, because it is equal to 3507572-1.

It is a junction number, because it is equal to n+sod(n) for n = 123030472999 and 123030473017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9814961 + ... + 9827487.

It is an arithmetic number, because the mean of its divisors is an integer number (4171260240).

Almost surely, 2123030473048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123030473048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133480327680).

123030473048 is an abundant number, since it is smaller than the sum of its proper divisors (143930182312).

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

123030473048 is a wasteful number, since it uses less digits than its factorization.

123030473048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14736 (or 14732 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The spelling of 123030473048 in words is "one hundred twenty-three billion, thirty million, four hundred seventy-three thousand, forty-eight".

Divisors: 1 2 4 7 8 14 28 56 83 166 332 581 664 1162 2113 2324 4226 4648 8452 12527 14791 16904 25054 29582 50108 59164 87689 100216 118328 175378 175379 350756 350758 701512 701516 1039741 1227653 1403032 2079482 2455306 4158964 4910612 7278187 8317928 9821224 14556374 26469551 29112748 52939102 58225496 105878204 185286857 211756408 370573714 741147428 1482294856 2196972733 4393945466 8787890932 15378809131 17575781864 30757618262 61515236524 123030473048