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3103123303020 = 223513416110391531
BaseRepresentation
bin101101001010000000100…
…011111110101001101100
3101222122200222221211222110
4231022000203332221230
5401320144031144040
610333315525444020
7440123200604226
oct55120043765154
911878628854873
103103123303020
11a9703322a644
124214a5870610
13196814436330
14aa298a99416
1555abcc7b980
hex2d2808fea6c

3103123303020 has 384 divisors, whose sum is σ = 9758215434240. Its totient is φ = 731814912000.

The previous prime is 3103123303003. The next prime is 3103123303117. The reversal of 3103123303020 is 203033213013.

It is a super-2 number, since 2×31031233030202 (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2026859655 + ... + 2026861185.

It is an arithmetic number, because the mean of its divisors is an integer number (25412019360).

Almost surely, 23103123303020 is an apocalyptic number.

3103123303020 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 3103123303020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4879107717120).

3103123303020 is an abundant number, since it is smaller than the sum of its proper divisors (6655092131220).

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

3103123303020 is a wasteful number, since it uses less digits than its factorization.

3103123303020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2697 (or 2695 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 3103123303020 its reverse (203033213013), we get a palindrome (3306156516033).

The spelling of 3103123303020 in words is "three trillion, one hundred three billion, one hundred twenty-three million, three hundred three thousand, twenty".