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83704127263680 = 26357115059223831
BaseRepresentation
bin10011000010000011100010…
…110001011001001111000000
3101222101000222112210102012210
4103002003202301121033000
541432402023034414210
6454005051211022120
723426265206300610
oct2302034261311700
9358330875712183
1083704127263680
11247417a2750830
12947a506a3a940
13379235ac1b8c1
141695430d92a40
159a250a747e20
hex4c20e2c593c0

83704127263680 has 448 divisors, whose sum is σ = 331404871311360. Its totient is φ = 17389549670400.

The previous prime is 83704127263633. The next prime is 83704127263699. The reversal of 83704127263680 is 8636272140738.

It is a tau number, because it is divible by the number of its divisors (448).

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 83704127263680.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 373849365 + ... + 374073195.

It is an arithmetic number, because the mean of its divisors is an integer number (739743016320).

Almost surely, 283704127263680 is an apocalyptic number.

83704127263680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83704127263680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165702435655680).

83704127263680 is an abundant number, since it is smaller than the sum of its proper divisors (247700744047680).

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

83704127263680 is a wasteful number, since it uses less digits than its factorization.

83704127263680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228928 (or 228918 counting only the distinct ones).

The product of its (nonzero) digits is 16257024, while the sum is 57.

The spelling of 83704127263680 in words is "eighty-three trillion, seven hundred four billion, one hundred twenty-seven million, two hundred sixty-three thousand, six hundred eighty".