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123868225026 = 23571317672459
BaseRepresentation
bin111001101011100011…
…1110001111000000010
3102211201120220210200000
41303113013301320002
54012140231200101
6132523153540430
711643366353250
oct1632707617002
9384646823600
10123868225026
1148594424907
122000b274716
13b8b071b410
145dd0d975d0
15334e89b486
hex1cd71f1e02

123868225026 has 384 divisors, whose sum is σ = 368262236160. Its totient is φ = 30275638272.

The previous prime is 123868225007. The next prime is 123868225051. The reversal of 123868225026 is 620522868321.

123868225026 is a `hidden beast` number, since 12 + 386 + 8 + 2 + 250 + 2 + 6 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 50372185 + ... + 50374643.

It is an arithmetic number, because the mean of its divisors is an integer number (959016240).

Almost surely, 2123868225026 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123868225026, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184131118080).

123868225026 is an abundant number, since it is smaller than the sum of its proper divisors (244394011134).

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

123868225026 is a wasteful number, since it uses less digits than its factorization.

123868225026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2580 (or 2568 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 123868225026 in words is "one hundred twenty-three billion, eight hundred sixty-eight million, two hundred twenty-five thousand, twenty-six".