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123289442382 = 2353387702649
BaseRepresentation
bin111001011010010011…
…1111001100001001110
3102210020020211121010210
41302310213321201032
54004444044124012
6132345520343250
711623140653301
oct1626447714116
9383206747123
10123289442382
1148317748947
121ba89474b26
13b81a841092
145d78174b38
153318b7023c
hex1cb49f984e

123289442382 has 16 divisors (see below), whose sum is σ = 251231317200. Its totient is φ = 40321075392.

The previous prime is 123289442371. The next prime is 123289442413. The reversal of 123289442382 is 283244982321.

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, 193851007 + ... + 193851642.

It is an arithmetic number, because the mean of its divisors is an integer number (15701957325).

Almost surely, 2123289442382 is an apocalyptic number.

123289442382 is an abundant number, since it is smaller than the sum of its proper divisors (127941874818).

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

123289442382 is a wasteful number, since it uses less digits than its factorization.

123289442382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387702707.

The product of its digits is 1327104, while the sum is 48.

The spelling of 123289442382 in words is "one hundred twenty-three billion, two hundred eighty-nine million, four hundred forty-two thousand, three hundred eighty-two".

Divisors: 1 2 3 6 53 106 159 318 387702649 775405298 1163107947 2326215894 20548240397 41096480794 61644721191 123289442382