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231374656377792 = 26351721931711231
BaseRepresentation
bin110100100110111100011100…
…001101000001001111000000
31010100020012102121211012200000
4310212330130031001033000
5220311320244013042132
62140032014425400000
766510160451310504
oct6446743415011700
91110205377735600
10231374656377792
11677a5493667174
1221b49b60339000
139c146c8839525
14411c843746304
151bb38bc07b87c
hexd26f1c3413c0

231374656377792 has 2016 divisors, whose sum is σ = 805687560437760. Its totient is φ = 65558771712000.

The previous prime is 231374656377791. The next prime is 231374656377797. The reversal of 231374656377792 is 297773656473132.

231374656377792 is a `hidden beast` number, since 2 + 3 + 1 + 3 + 7 + 465 + 6 + 3 + 7 + 77 + 92 = 666.

It is a super-3 number, since 3×2313746563777923 (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 231374656377792.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231374656377791) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 187956665817 + ... + 187956667047.

It is an arithmetic number, because the mean of its divisors is an integer number (399646607360).

Almost surely, 2231374656377792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231374656377792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (402843780218880).

231374656377792 is an abundant number, since it is smaller than the sum of its proper divisors (574312904059968).

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

231374656377792 is a wasteful number, since it uses less digits than its factorization.

231374656377792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413 (or 1374 counting only the distinct ones).

The product of its digits is 1680315840, while the sum is 72.

The spelling of 231374656377792 in words is "two hundred thirty-one trillion, three hundred seventy-four billion, six hundred fifty-six million, three hundred seventy-seven thousand, seven hundred ninety-two".