Search a number
-
+
51127371694080 = 2183551114593
BaseRepresentation
bin10111010000000000001001…
…10101000000000000000000
320201000201200102220011100000
423220000010311000000000
523200132324123202310
6300423331301200000
713524554634622053
oct1350000465000000
9221021612804300
1051127371694080
1115321aa6484a60
1258989b1400000
13226b3a11bc526
14c8a81402aa9a
155d9e186174c0
hex2e8004d40000

51127371694080 has 912 divisors, whose sum is σ = 200529056879424. Its totient is φ = 12393665003520.

The previous prime is 51127371693989. The next prime is 51127371694103. The reversal of 51127371694080 is 8049617372115.

51127371694080 is a `hidden beast` number, since 5 + 1 + 1 + 2 + 73 + 7 + 169 + 408 + 0 = 666.

It is a super-2 number, since 2×511273716940802 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3503547264 + ... + 3503561856.

It is a 1-persistent number, because it is pandigital, but 2⋅51127371694080 = 102254743388160 is not.

Almost surely, 251127371694080 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 51127371694080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100264528439712).

51127371694080 is an abundant number, since it is smaller than the sum of its proper divisors (149401685185344).

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

51127371694080 is an frugal number, since it uses more digits than its factorization.

51127371694080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14660 (or 14614 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 54.

The spelling of 51127371694080 in words is "fifty-one trillion, one hundred twenty-seven billion, three hundred seventy-one million, six hundred ninety-four thousand, eighty".