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51422673742830 = 232513127751676661
BaseRepresentation
bin10111011000100110001100…
…01100111010101111101110
320202001221220112210112111200
423230103012030322233232
523220002113434232310
6301211130013030330
713555110535621515
oct1354230614725756
9222057815715450
1051422673742830
1115426262817a15
1259260854853a6
1322901a2926a10
14c9ac2925567c
155e294d6359c0
hex2ec4c633abee

51422673742830 has 192 divisors, whose sum is σ = 144145762645248. Its totient is φ = 12643630433280.

The previous prime is 51422673742829. The next prime is 51422673742841. The reversal of 51422673742830 is 3824737622415.

51422673742830 is a `hidden beast` number, since 5 + 1 + 4 + 2 + 267 + 374 + 2 + 8 + 3 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7719959700 + ... + 7719966360.

It is an arithmetic number, because the mean of its divisors is an integer number (750759180444).

Almost surely, 251422673742830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51422673742830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72072881322624).

51422673742830 is an abundant number, since it is smaller than the sum of its proper divisors (92723088902418).

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

51422673742830 is a wasteful number, since it uses less digits than its factorization.

51422673742830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13131 (or 13128 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 54.

The spelling of 51422673742830 in words is "fifty-one trillion, four hundred twenty-two billion, six hundred seventy-three million, seven hundred forty-two thousand, eight hundred thirty".