Search a number
-
+
53132986368 = 2113371112479
BaseRepresentation
bin110001011110111110…
…010000100000000000
312002010221002100222000
4301132332100200000
51332304021030433
640224200144000
73560453634540
oct613676204000
9162127070860
1053132986368
1120596205090
12a36a168000
135019b77107
142800873320
1515ae957113
hexc5ef90800

53132986368 has 384 divisors, whose sum is σ = 196245504000. Its totient is φ = 13799669760.

The previous prime is 53132986363. The next prime is 53132986451. The reversal of 53132986368 is 86368923135.

It is a happy number.

53132986368 is a `hidden beast` number, since 5 + 313 + 298 + 6 + 36 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a super-2 number, since 2×531329863682 (a number of 22 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (53132986363) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4251553 + ... + 4264031.

It is an arithmetic number, because the mean of its divisors is an integer number (511056000).

Almost surely, 253132986368 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 53132986368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98122752000).

53132986368 is an abundant number, since it is smaller than the sum of its proper divisors (143112517632).

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

53132986368 is a wasteful number, since it uses less digits than its factorization.

53132986368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12528 (or 12502 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 54.

The spelling of 53132986368 in words is "fifty-three billion, one hundred thirty-two million, nine hundred eighty-six thousand, three hundred sixty-eight".