Search a number
-
+
10113012231220 = 225505650611561
BaseRepresentation
bin1001001100101001111010…
…0000000110110000110100
31022210210110012200102121201
42103022132200012300310
52311142422112344340
633301504221222244
72062432604432053
oct223123640066064
938723405612551
1010113012231220
1132499a4839018
121173b77401984
1358486472cc62
1426d6883c039a
151280e16e879a
hex9329e806c34

10113012231220 has 12 divisors (see below), whose sum is σ = 21237325685604. Its totient is φ = 4045204892480.

The previous prime is 10113012231209. The next prime is 10113012231229. The reversal of 10113012231220 is 2213221031101.

It can be written as a sum of positive squares in 2 ways, for example, as 1198595798416 + 8914416432804 = 1094804^2 + 2985702^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10113012231229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252825305761 + ... + 252825305800.

It is an arithmetic number, because the mean of its divisors is an integer number (1769777140467).

Almost surely, 210113012231220 is an apocalyptic number.

10113012231220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10113012231220 is an abundant number, since it is smaller than the sum of its proper divisors (11124313454384).

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

10113012231220 is a wasteful number, since it uses less digits than its factorization.

10113012231220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505650611570 (or 505650611568 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 10113012231220 its reverse (2213221031101), we get a palindrome (12326233262321).

The spelling of 10113012231220 in words is "ten trillion, one hundred thirteen billion, twelve million, two hundred thirty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 505650611561 1011301223122 2022602446244 2528253057805 5056506115610 10113012231220