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3102255020 = 225198163829
BaseRepresentation
bin1011100011101000…
…1010011110101100
322000012102212212002
42320322022132230
522323134130040
61231500031432
7136606506164
oct27072123654
98005385762
103102255020
111352162127
12726b32578
133a5937577
142160235a4
15132541a15
hexb8e8a7ac

3102255020 has 24 divisors (see below), whose sum is σ = 6857617200. Its totient is φ = 1175591232.

The previous prime is 3102255017. The next prime is 3102255031. The reversal of 3102255020 is 205522013.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3102254983 and 3102255001.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4081535 + ... + 4082294.

It is an arithmetic number, because the mean of its divisors is an integer number (285734050).

Almost surely, 23102255020 is an apocalyptic number.

It is an amenable number.

3102255020 is an abundant number, since it is smaller than the sum of its proper divisors (3755362180).

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

3102255020 is a wasteful number, since it uses less digits than its factorization.

3102255020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8163857 (or 8163855 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 3102255020 is about 55697.8906243315. The cubic root of 3102255020 is about 1458.4532032589.

Adding to 3102255020 its reverse (205522013), we get a palindrome (3307777033).

The spelling of 3102255020 in words is "three billion, one hundred two million, two hundred fifty-five thousand, twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 8163829 16327658 32655316 40819145 81638290 155112751 163276580 310225502 620451004 775563755 1551127510 3102255020