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3000131220 = 223550002187
BaseRepresentation
bin1011001011010010…
…0101111010010100
321202002021110100010
42302310211322110
522121013144340
61213411120220
7134226460152
oct26264457224
97662243303
103000131220
1112aa54aa99
126b88a3070
1338a72c198
1420663c3d2
151285bcb80
hexb2d25e94

3000131220 has 24 divisors (see below), whose sum is σ = 8400367584. Its totient is φ = 800034976.

The previous prime is 3000131207. The next prime is 3000131221. The reversal of 3000131220 is 221310003.

It is a happy number.

3000131220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 3000131196 and 3000131205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3000131221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25001034 + ... + 25001153.

It is an arithmetic number, because the mean of its divisors is an integer number (350015316).

Almost surely, 23000131220 is an apocalyptic number.

3000131220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3000131220 is an abundant number, since it is smaller than the sum of its proper divisors (5400236364).

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

3000131220 is a wasteful number, since it uses less digits than its factorization.

3000131220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50002199 (or 50002197 counting only the distinct ones).

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

The square root of 3000131220 is about 54773.4536066515. The cubic root of 3000131220 is about 1442.2705979996.

Adding to 3000131220 its reverse (221310003), we get a palindrome (3221441223).

The spelling of 3000131220 in words is "three billion, one hundred thirty-one thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 50002187 100004374 150006561 200008748 250010935 300013122 500021870 600026244 750032805 1000043740 1500065610 3000131220