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112102212020 = 2257376782337
BaseRepresentation
bin110100001100111010…
…0000000000110110100
3101201100121002102010112
41220121310000012310
53314041131241040
6123255443242152
711045666036321
oct1503164000664
9351317072115
10112102212020
11435a685a117
1219886979358
13a756bb0846
1455d6487b48
152db194a365
hex1a19d001b4

112102212020 has 24 divisors (see below), whose sum is σ = 238639506504. Its totient is φ = 44226625536.

The previous prime is 112102211983. The next prime is 112102212031. The reversal of 112102212020 is 20212201211.

It can be written as a sum of positive squares in 4 ways, for example, as 1370332324 + 110731879696 = 37018^2 + 332764^2 .

It is a super-3 number, since 3×1121022120203 (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 112102211986 and 112102212004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38389709 + ... + 38392628.

It is an arithmetic number, because the mean of its divisors is an integer number (9943312771).

Almost surely, 2112102212020 is an apocalyptic number.

112102212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112102212020 is an abundant number, since it is smaller than the sum of its proper divisors (126537294484).

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

112102212020 is a wasteful number, since it uses less digits than its factorization.

112102212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76782419 (or 76782417 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 112102212020 its reverse (20212201211), we get a palindrome (132314413231).

The spelling of 112102212020 in words is "one hundred twelve billion, one hundred two million, two hundred twelve thousand, twenty".

Divisors: 1 2 4 5 10 20 73 146 292 365 730 1460 76782337 153564674 307129348 383911685 767823370 1535646740 5605110601 11210221202 22420442404 28025553005 56051106010 112102212020