Search a number
-
+
220131010212 = 223110871654573
BaseRepresentation
bin1100110100000011010…
…1001010011010100100
3210001012022022221222020
43031000311022122210
512101312014311322
6245043215303140
721622023466611
oct3150065123244
9701168287866
10220131010212
11853a2242123
12367b551aab0
13179b1ba7339
14a92394b508
155ad596d05c
hex3340d4a6a4

220131010212 has 24 divisors (see below), whose sum is σ = 513685662336. Its totient is φ = 73370340768.

The previous prime is 220131010117. The next prime is 220131010249. The reversal of 220131010212 is 212010131022.

It is a junction number, because it is equal to n+sod(n) for n = 220131010191 and 220131010200.

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, 694243 + ... + 960330.

It is an arithmetic number, because the mean of its divisors is an integer number (21403569264).

Almost surely, 2220131010212 is an apocalyptic number.

It is an amenable number.

220131010212 is an abundant number, since it is smaller than the sum of its proper divisors (293554652124).

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

220131010212 is a wasteful number, since it uses less digits than its factorization.

220131010212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665667 (or 1665665 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 220131010212 its reverse (212010131022), we get a palindrome (432141141234).

The spelling of 220131010212 in words is "two hundred twenty billion, one hundred thirty-one million, ten thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 11087 22174 33261 44348 66522 133044 1654573 3309146 4963719 6618292 9927438 19854876 18344250851 36688501702 55032752553 73377003404 110065505106 220131010212