Search a number
-
+
123000202220 = 2257878572873
BaseRepresentation
bin111001010001101100…
…0100010001111101100
3102202111002120200020012
41302203120202033230
54003401022432340
6132301105112352
711613026316440
oct1624330421754
9382432520205
10123000202220
1148189453495
121ba086286b8
13b7a293c95c
145d4b9a2820
1532ed589565
hex1ca36223ec

123000202220 has 24 divisors (see below), whose sum is σ = 295200485664. Its totient is φ = 42171497856.

The previous prime is 123000202211. The next prime is 123000202277. The reversal of 123000202220 is 22202000321.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 123000202195 and 123000202204.

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, 439286297 + ... + 439286576.

It is an arithmetic number, because the mean of its divisors is an integer number (12300020236).

Almost surely, 2123000202220 is an apocalyptic number.

123000202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123000202220 is an abundant number, since it is smaller than the sum of its proper divisors (172200283444).

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

123000202220 is a wasteful number, since it uses less digits than its factorization.

123000202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878572889 (or 878572887 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 123000202220 its reverse (22202000321), we get a palindrome (145202202541).

The spelling of 123000202220 in words is "one hundred twenty-three billion, two hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 878572873 1757145746 3514291492 4392864365 6150010111 8785728730 12300020222 17571457460 24600040444 30750050555 61500101110 123000202220