Search a number
-
+
61060360020 = 2235111011994603
BaseRepresentation
bin111000110111011110…
…110010011101010100
312211121101211200020120
4320313132302131110
52000022423010040
644014543231540
74261063332222
oct706736623524
9184541750216
1061060360020
1123993a88260
12ba00ba85b0
1359b133c15a
142d53633b12
1518c58a87d0
hexe377b2754

61060360020 has 192 divisors, whose sum is σ = 189345945600. Its totient is φ = 14579136000.

The previous prime is 61060360013. The next prime is 61060360051. The reversal of 61060360020 is 2006306016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13263039 + ... + 13267641.

It is an arithmetic number, because the mean of its divisors is an integer number (986176800).

Almost surely, 261060360020 is an apocalyptic number.

61060360020 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 61060360020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94672972800).

61060360020 is an abundant number, since it is smaller than the sum of its proper divisors (128285585580).

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

61060360020 is a wasteful number, since it uses less digits than its factorization.

61060360020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4926 (or 4924 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 61060360020 its reverse (2006306016), we get a palindrome (63066666036).

The spelling of 61060360020 in words is "sixty-one billion, sixty million, three hundred sixty thousand, twenty".