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123040413453 = 350543811457
BaseRepresentation
bin111001010010111000…
…1111011011100001101
3102202120220020121200010
41302211301323130031
54003441321212303
6132305103023433
711614025154366
oct1624561733415
9382526217603
10123040413453
11481aa118811
121ba19b9ab79
13b7ab07b699
145d5306cb6d
153301d7dc03
hex1ca5c7b70d

123040413453 has 8 divisors (see below), whose sum is σ = 164057332608. Its totient is φ = 82025218304.

The previous prime is 123040413451. The next prime is 123040413467. The reversal of 123040413453 is 354314040321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123040413453 - 21 = 123040413451 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123040413453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123040413451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254100 + ... + 557357.

It is an arithmetic number, because the mean of its divisors is an integer number (20507166576).

Almost surely, 2123040413453 is an apocalyptic number.

It is an amenable number.

123040413453 is a deficient number, since it is larger than the sum of its proper divisors (41016919155).

123040413453 is an equidigital number, since it uses as much as digits as its factorization.

123040413453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862003.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 123040413453 its reverse (354314040321), we get a palindrome (477354453774).

The spelling of 123040413453 in words is "one hundred twenty-three billion, forty million, four hundred thirteen thousand, four hundred fifty-three".

Divisors: 1 3 50543 151629 811457 2434371 41013471151 123040413453