Search a number
-
+
22606006660 = 2257117988937
BaseRepresentation
bin10101000011011011…
…000100100110000100
32011100110012010022221
4111003123010212010
5332244114203120
614215101102124
71430124612646
oct250333044604
964313163287
1022606006660
119650557436
12446a857944
132193571903
14114644c896
158c49360aa
hex5436c4984

22606006660 has 48 divisors (see below), whose sum is σ = 48410732160. Its totient is φ = 8865140480.

The previous prime is 22606006639. The next prime is 22606006663. The reversal of 22606006660 is 6660060622.

It is a happy number.

It is a super-2 number, since 2×226060066602 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22606006663) 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, 209712 + ... + 298648.

It is an arithmetic number, because the mean of its divisors is an integer number (1008556920).

Almost surely, 222606006660 is an apocalyptic number.

22606006660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22606006660 is an abundant number, since it is smaller than the sum of its proper divisors (25804725500).

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

22606006660 is a wasteful number, since it uses less digits than its factorization.

22606006660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89196 (or 89194 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

The spelling of 22606006660 in words is "twenty-two billion, six hundred six million, six thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 71 142 179 284 355 358 710 716 895 1420 1790 3580 12709 25418 50836 63545 88937 127090 177874 254180 355748 444685 889370 1778740 6314527 12629054 15919723 25258108 31572635 31839446 63145270 63678892 79598615 126290540 159197230 318394460 1130300333 2260600666 4521201332 5651501665 11303003330 22606006660