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6612939944 = 2313238931063
BaseRepresentation
bin1100010100010100…
…10111010010101000
3122001212102011012122
412022022113102220
5102020403034234
63012110130412
7322606030202
oct61212272250
918055364178
106612939944
112893917726
1213467b0a08
13815075420
1446a3a3772
1528a85e92e
hex18a2974a8

6612939944 has 64 divisors (see below), whose sum is σ = 14090630400. Its totient is φ = 2886529536.

The previous prime is 6612939941. The next prime is 6612939961. The reversal of 6612939944 is 4499392166.

It is not an unprimeable number, because it can be changed into a prime (6612939941) 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, 197357 + ... + 228419.

It is an arithmetic number, because the mean of its divisors is an integer number (220166100).

Almost surely, 26612939944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6612939944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7045315200).

6612939944 is an abundant number, since it is smaller than the sum of its proper divisors (7477690456).

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

6612939944 is a wasteful number, since it uses less digits than its factorization.

6612939944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31194 (or 31190 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 53.

The square root of 6612939944 is about 81319.9848991624. The cubic root of 6612939944 is about 1877.0025366621.

The spelling of 6612939944 in words is "six billion, six hundred twelve million, nine hundred thirty-nine thousand, nine hundred forty-four".

Divisors: 1 2 4 8 13 23 26 46 52 89 92 104 178 184 299 356 598 712 1157 1196 2047 2314 2392 4094 4628 8188 9256 16376 26611 31063 53222 62126 106444 124252 212888 248504 403819 714449 807638 1428898 1615276 2764607 2857796 3230552 5529214 5715592 9287837 11058428 18575674 22116856 35939891 37151348 63585961 71879782 74302696 127171922 143759564 254343844 287519128 508687688 826617493 1653234986 3306469972 6612939944