Search a number
-
+
1361842860 = 2235719473631
BaseRepresentation
bin101000100101100…
…0001001010101100
310111220112210012110
41101023001022230
510242112432420
6343045004020
745514321230
oct12113011254
93456483173
101361842860
116397a7774
123200b3610
131891ab9a1
14ccc1c5c0
157e858ee0
hex512c12ac

1361842860 has 192 divisors, whose sum is σ = 4686151680. Its totient is φ = 288541440.

The previous prime is 1361842847. The next prime is 1361842861. The reversal of 1361842860 is 682481631.

It is not an unprimeable number, because it can be changed into a prime (1361842861) 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, 373245 + ... + 376875.

It is an arithmetic number, because the mean of its divisors is an integer number (24407040).

Almost surely, 21361842860 is an apocalyptic number.

1361842860 is a gapful number since it is divisible by the number (10) 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 1361842860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2343075840).

1361842860 is an abundant number, since it is smaller than the sum of its proper divisors (3324308820).

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

1361842860 is a wasteful number, since it uses less digits than its factorization.

1361842860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3716 (or 3714 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 1361842860 is about 36903.1551496617. The cubic root of 1361842860 is about 1108.4318575740.

The spelling of 1361842860 in words is "one billion, three hundred sixty-one million, eight hundred forty-two thousand, eight hundred sixty".