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6130521660 = 22352353791061
BaseRepresentation
bin1011011010110100…
…00101011000111100
3120211020122202201210
411231122011120330
5100023403143120
62452154204420
7304630400664
oct55532053074
916736582653
106130521660
11266657972a
121231123710
13769137b13
144222a71a4
1525d31ace0
hex16d68563c

6130521660 has 192 divisors, whose sum is σ = 18498170880. Its totient is φ = 1513374720.

The previous prime is 6130521583. The next prime is 6130521667. The reversal of 6130521660 is 661250316.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6130521667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5777530 + ... + 5778590.

It is an arithmetic number, because the mean of its divisors is an integer number (96344640).

Almost surely, 26130521660 is an apocalyptic number.

6130521660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6130521660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9249085440).

6130521660 is an abundant number, since it is smaller than the sum of its proper divisors (12367649220).

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

6130521660 is a wasteful number, since it uses less digits than its factorization.

6130521660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228 (or 1226 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 6130521660 is about 78297.6478573910. The cubic root of 6130521660 is about 1830.2024978224.

Adding to 6130521660 its reverse (661250316), we get a palindrome (6791771976).

The spelling of 6130521660 in words is "six billion, one hundred thirty million, five hundred twenty-one thousand, six hundred sixty".