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123006640013 = 831553954287
BaseRepresentation
bin111001010001111000…
…1000101111110001101
3102202111112200202012222
41302203301011332031
54003404144440023
6132301455105125
711613135121505
oct1624361057615
9382445622188
10123006640013
1148192050284
121ba0a8121a5
13b7a4084cba
145d4c79aa05
1532ede0bcc8
hex1ca3c45f8d

123006640013 has 8 divisors (see below), whose sum is σ = 124568938368. Its totient is φ = 121446253504.

The previous prime is 123006639983. The next prime is 123006640021. The reversal of 123006640013 is 310046600321.

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 123006640013 - 26 = 123006639949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123006642013) 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, 348245 + ... + 606042.

It is an arithmetic number, because the mean of its divisors is an integer number (15571117296).

Almost surely, 2123006640013 is an apocalyptic number.

It is an amenable number.

123006640013 is a deficient number, since it is larger than the sum of its proper divisors (1562298355).

123006640013 is an equidigital number, since it uses as much as digits as its factorization.

123006640013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955923.

The product of its (nonzero) digits is 2592, while the sum is 26.

The spelling of 123006640013 in words is "one hundred twenty-three billion, six million, six hundred forty thousand, thirteen".

Divisors: 1 83 1553 128899 954287 79205821 1482007711 123006640013