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12311461012146 = 237128900143221
BaseRepresentation
bin1011001100100111110001…
…0000101010001010110010
31121120222000212220212112220
42303021330100222022302
53103202333004342041
642103450200301510
72410321323643422
oct263117420521262
947528025825486
1012311461012146
113a1729686716a
12146a063471896
136b3c72ac9c8a
14307c40d18482
151653b1884d66
hexb327c42a2b2

12311461012146 has 16 divisors (see below), whose sum is σ = 24969723743808. Its totient is φ = 4046020050800.

The previous prime is 12311461012111. The next prime is 12311461012159. The reversal of 12311461012146 is 64121016411321.

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, 14450071185 + ... + 14450072036.

It is an arithmetic number, because the mean of its divisors is an integer number (1560607733988).

Almost surely, 212311461012146 is an apocalyptic number.

12311461012146 is an abundant number, since it is smaller than the sum of its proper divisors (12658262731662).

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

12311461012146 is a wasteful number, since it uses less digits than its factorization.

12311461012146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28900143297.

The product of its (nonzero) digits is 6912, while the sum is 33.

Adding to 12311461012146 its reverse (64121016411321), we get a palindrome (76432477423467).

The spelling of 12311461012146 in words is "twelve trillion, three hundred eleven billion, four hundred sixty-one million, twelve thousand, one hundred forty-six".

Divisors: 1 2 3 6 71 142 213 426 28900143221 57800286442 86700429663 173400859326 2051910168691 4103820337382 6155730506073 12311461012146