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3131330020000 = 25547132132347
BaseRepresentation
bin101101100100010001110…
…100000100001010100000
3102002100111202212112111221
4231210101310010022200
5402300430441120000
610354302501344424
7442142164002550
oct55442164041240
912070452775457
103131330020000
11aa7a98187596
12426a58108114
1319938b120800
14ab7b2c99160
15566be22761a
hex2d911d042a0

3131330020000 has 360 divisors, whose sum is σ = 9533448894816. Its totient is φ = 991006848000.

The previous prime is 3131330019967. The next prime is 3131330020009. The reversal of 3131330020000 is 200331313.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (3131330020009) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 23593827 + ... + 23726173.

Almost surely, 23131330020000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3131330020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4766724447408).

3131330020000 is an abundant number, since it is smaller than the sum of its proper divisors (6402118874816).

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

3131330020000 is a wasteful number, since it uses less digits than its factorization.

3131330020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132410 (or 132374 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 3131330020000 its reverse (200331313), we get a palindrome (3131530351313).

The spelling of 3131330020000 in words is "three trillion, one hundred thirty-one billion, three hundred thirty million, twenty thousand".