Search a number
-
+
112232031220 = 2255611601561
BaseRepresentation
bin110100010000110001…
…1001110001111110100
3101201200122100220121001
41220201203032033310
53314322344444340
6123320401533044
711052133345051
oct1504143161764
9351618326531
10112232031220
1143663068211
1219902344184
13a777a64c3a
1456097dc028
152dbd04029a
hex1a218ce3f4

112232031220 has 12 divisors (see below), whose sum is σ = 235687265604. Its totient is φ = 44892812480.

The previous prime is 112232031139. The next prime is 112232031221. The reversal of 112232031220 is 22130232211.

It can be written as a sum of positive squares in 2 ways, for example, as 17905651344 + 94326379876 = 133812^2 + 307126^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112232031221) 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, 2805800761 + ... + 2805800800.

It is an arithmetic number, because the mean of its divisors is an integer number (19640605467).

Almost surely, 2112232031220 is an apocalyptic number.

112232031220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112232031220 is an abundant number, since it is smaller than the sum of its proper divisors (123455234384).

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

112232031220 is a wasteful number, since it uses less digits than its factorization.

112232031220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5611601570 (or 5611601568 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 112232031220 its reverse (22130232211), we get a palindrome (134362263431).

The spelling of 112232031220 in words is "one hundred twelve billion, two hundred thirty-two million, thirty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 5611601561 11223203122 22446406244 28058007805 56116015610 112232031220