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123343460645 = 5176138961153
BaseRepresentation
bin111001011011111010…
…1111101100100100101
3102210101000111000021012
41302313311331210211
54010101411220040
6132355130232005
711624365055036
oct1626765754445
9383330430235
10123343460645
1148345193639
121baa3585605
13b828aa5452
145d813d6a8d
15331d790865
hex1cb7d7d925

123343460645 has 32 divisors (see below), whose sum is σ = 159700001760. Its totient is φ = 91111587840.

The previous prime is 123343460633. The next prime is 123343460659. The reversal of 123343460645 is 546064343321.

It can be written as a sum of positive squares in 16 ways, for example, as 19854500836 + 103488959809 = 140906^2 + 321697^2 .

It is not a de Polignac number, because 123343460645 - 28 = 123343460389 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1986389 + ... + 2047541.

It is an arithmetic number, because the mean of its divisors is an integer number (4990625055).

Almost surely, 2123343460645 is an apocalyptic number.

It is an amenable number.

123343460645 is a deficient number, since it is larger than the sum of its proper divisors (36356541115).

123343460645 is a wasteful number, since it uses less digits than its factorization.

123343460645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61625.

The product of its (nonzero) digits is 622080, while the sum is 41.

The spelling of 123343460645 in words is "one hundred twenty-three billion, three hundred forty-three million, four hundred sixty thousand, six hundred forty-five".

Divisors: 1 5 17 61 85 305 389 1037 1945 5185 6613 23729 33065 61153 118645 305765 403393 1039601 2016965 3730333 5198005 18651665 23788517 63415661 118942585 317078305 404404789 1451099537 2022023945 7255497685 24668692129 123343460645