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51032424960 = 2932511201359
BaseRepresentation
bin101111100001110001…
…010000001000000000
311212201112111210102100
4233201301100020000
51314003300044320
635235521550400
73454426312026
oct574161201000
9155645453370
1051032424960
111a708523220
129a827a5400
134a7392087a
1426818bc716
1514da32d790
hexbe1c50200

51032424960 has 240 divisors, whose sum is σ = 192807838080. Its totient is φ = 12371435520.

The previous prime is 51032424959. The next prime is 51032425021. The reversal of 51032424960 is 6942423015.

It is a happy number.

51032424960 is a `hidden beast` number, since 510 + 3 + 2 + 42 + 49 + 60 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 152761 + ... + 354119.

It is an arithmetic number, because the mean of its divisors is an integer number (803365992).

Almost surely, 251032424960 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 51032424960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96403919040).

51032424960 is an abundant number, since it is smaller than the sum of its proper divisors (141775413120).

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

51032424960 is a wasteful number, since it uses less digits than its factorization.

51032424960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201399 (or 201380 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

Adding to 51032424960 its reverse (6942423015), we get a palindrome (57974847975).

The spelling of 51032424960 in words is "fifty-one billion, thirty-two million, four hundred twenty-four thousand, nine hundred sixty".