Search a number
-
+
68003562528 = 25331129251983
BaseRepresentation
bin111111010101010101…
…000000010000100000
320111112021200220112000
4333111111000100200
52103232403000103
651123532204000
74625122513146
oct772525002040
9214467626460
1068003562528
1126927269050
121121a309600
1365499499c5
143411807596
151b80203aa3
hexfd5540420

68003562528 has 384 divisors, whose sum is σ = 224956569600. Its totient is φ = 19797120000.

The previous prime is 68003562527. The next prime is 68003562533. The reversal of 68003562528 is 82526530086.

68003562528 is a `hidden beast` number, since 6 + 80 + 0 + 3 + 562 + 5 + 2 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (68003562527) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 69179125 + ... + 69180107.

It is an arithmetic number, because the mean of its divisors is an integer number (585824400).

Almost surely, 268003562528 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 68003562528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112478284800).

68003562528 is an abundant number, since it is smaller than the sum of its proper divisors (156953007072).

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

68003562528 is a wasteful number, since it uses less digits than its factorization.

68003562528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293 (or 1279 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 68003562528 in words is "sixty-eight billion, three million, five hundred sixty-two thousand, five hundred twenty-eight".