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12000402101 = 29461897629
BaseRepresentation
bin10110010110100011…
…11001101010110101
31010222022212120221002
423023101321222311
5144034100331401
65302442133045
7603244510022
oct131321715265
933868776832
1012000402101
1150a8a06796
1223aaab1185
13119327585c
1481bac4549
154a37eea6b
hex2cb479ab5

12000402101 has 8 divisors (see below), whose sum is σ = 12441151800. Its totient is φ = 11561448640.

The previous prime is 12000402097. The next prime is 12000402107. The reversal of 12000402101 is 10120400021.

It can be written as a sum of positive squares in 4 ways, for example, as 174927076 + 11825475025 = 13226^2 + 108745^2 .

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 12000402101 - 22 = 12000402097 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 (12000402107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 435446 + ... + 462183.

It is an arithmetic number, because the mean of its divisors is an integer number (1555143975).

Almost surely, 212000402101 is an apocalyptic number.

It is an amenable number.

12000402101 is a deficient number, since it is larger than the sum of its proper divisors (440749699).

12000402101 is an equidigital number, since it uses as much as digits as its factorization.

12000402101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898119.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12000402101 its reverse (10120400021), we get a palindrome (22120802122).

The spelling of 12000402101 in words is "twelve billion, four hundred two thousand, one hundred one".

Divisors: 1 29 461 13369 897629 26031241 413806969 12000402101