Search a number
-
+
123054768 = 2433443643
BaseRepresentation
bin1110101010110…
…10101010110000
322120112211102000
413111122222300
5223000223033
620113254000
73022643154
oct725325260
9276484360
10123054768
1163508961
1235264300
131c656495
14124b3064
15ac0aa13
hex755aab0

123054768 has 80 divisors (see below), whose sum is σ = 354560640. Its totient is φ = 40862016.

The previous prime is 123054739. The next prime is 123054791. The reversal of 123054768 is 867450321.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 191055 + ... + 191697.

It is an arithmetic number, because the mean of its divisors is an integer number (4432008).

Almost surely, 2123054768 is an apocalyptic number.

123054768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123054768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177280320).

123054768 is an abundant number, since it is smaller than the sum of its proper divisors (231505872).

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

123054768 is a wasteful number, since it uses less digits than its factorization.

123054768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103 (or 1091 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 123054768 is about 11093.0053637416. The cubic root of 123054768 is about 497.3927858322.

The spelling of 123054768 in words is "one hundred twenty-three million, fifty-four thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 108 144 216 432 443 643 886 1286 1329 1772 1929 2572 2658 3544 3858 3987 5144 5316 5787 7088 7716 7974 10288 10632 11574 11961 15432 15948 17361 21264 23148 23922 30864 31896 34722 46296 47844 63792 69444 92592 95688 138888 191376 277776 284849 569698 854547 1139396 1709094 2278792 2563641 3418188 4557584 5127282 6836376 7690923 10254564 13672752 15381846 20509128 30763692 41018256 61527384 123054768