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3102310020 = 2235465111117
BaseRepresentation
bin1011100011101001…
…0111111010000100
322000012112200022010
42320322113322010
522323142410040
61231501134220
7136610125425
oct27072277204
98005480263
103102310020
11135219a487
12726b5a370
133a5956604
1421603964c
15132552e80
hexb8e97e84

3102310020 has 48 divisors (see below), whose sum is σ = 8689117248. Its totient is φ = 827030400.

The previous prime is 3102309979. The next prime is 3102310021. The reversal of 3102310020 is 200132013.

It is a happy number.

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 = 3102309978 and 3102310005.

It is not an unprimeable number, because it can be changed into a prime (3102310021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273502 + ... + 284618.

It is an arithmetic number, because the mean of its divisors is an integer number (181023276).

Almost surely, 23102310020 is an apocalyptic number.

3102310020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3102310020 is an abundant number, since it is smaller than the sum of its proper divisors (5586807228).

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

3102310020 is a wasteful number, since it uses less digits than its factorization.

3102310020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15780 (or 15778 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 3102310020 is about 55698.3843571786. The cubic root of 3102310020 is about 1458.4618221991.

Adding to 3102310020 its reverse (200132013), we get a palindrome (3302442033).

The spelling of 3102310020 in words is "three billion, one hundred two million, three hundred ten thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 4651 9302 11117 13953 18604 22234 23255 27906 33351 44468 46510 55585 55812 66702 69765 93020 111170 133404 139530 166755 222340 279060 333510 667020 51705167 103410334 155115501 206820668 258525835 310231002 517051670 620462004 775577505 1034103340 1551155010 3102310020