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3130203023220 = 2235713297454637
BaseRepresentation
bin101101100011001110101…
…000111010011101110100
3102002020121020020011120110
4231203032220322131310
5402241123433220340
610353555002103020
7442102230456630
oct55431650723564
912066536204513
103130203023220
11aa756a003199
124267a27aaa70
1319923b7a9b00
14ab70732ddc0
155665530c680
hex2d8cea3a774

3130203023220 has 288 divisors, whose sum is σ = 10958274286848. Its totient is φ = 653628358656.

The previous prime is 3130203023197. The next prime is 3130203023221. The reversal of 3130203023220 is 223203020313.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3130203023221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6657742 + ... + 7112378.

It is an arithmetic number, because the mean of its divisors is an integer number (38049563496).

Almost surely, 23130203023220 is an apocalyptic number.

3130203023220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3130203023220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5479137143424).

3130203023220 is an abundant number, since it is smaller than the sum of its proper divisors (7828071263628).

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

3130203023220 is a wasteful number, since it uses less digits than its factorization.

3130203023220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454779 (or 454764 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 3130203023220 its reverse (223203020313), we get a palindrome (3353406043533).

The spelling of 3130203023220 in words is "three trillion, one hundred thirty billion, two hundred three million, twenty-three thousand, two hundred twenty".