Search a number
-
+
101112020220 = 22352727761781
BaseRepresentation
bin101111000101010111…
…1101111110011111100
3100122222200002211012210
41132022233233303330
53124034134121340
6114241125300420
710206435663651
oct1361257576374
9318880084183
10101112020220
1139977110382
121771a264710
1396c500b683
144c72a0bc28
15296bb97180
hex178abefcfc

101112020220 has 48 divisors (see below), whose sum is σ = 283128618528. Its totient is φ = 26961780480.

The previous prime is 101112020183. The next prime is 101112020221. The reversal of 101112020220 is 22020211101.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 101112020196 and 101112020205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101112020221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1605730 + ... + 1667510.

It is an arithmetic number, because the mean of its divisors is an integer number (5898512886).

Almost surely, 2101112020220 is an apocalyptic number.

101112020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101112020220 is an abundant number, since it is smaller than the sum of its proper divisors (182016598308).

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

101112020220 is a wasteful number, since it uses less digits than its factorization.

101112020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89070 (or 89068 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 101112020220 its reverse (22020211101), we get a palindrome (123132231321).

The spelling of 101112020220 in words is "one hundred one billion, one hundred twelve million, twenty thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 27277 54554 61781 81831 109108 123562 136385 163662 185343 247124 272770 308905 327324 370686 409155 545540 617810 741372 818310 926715 1235620 1636620 1853430 3706860 1685200337 3370400674 5055601011 6740801348 8426001685 10111202022 16852003370 20222404044 25278005055 33704006740 50556010110 101112020220