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20210131313000 = 2353792336471697
BaseRepresentation
bin1001001100001100010011…
…01100101010000101101000
32122120001212210121012211222
410212012021230222011220
510122110322104004000
6110552223421241212
74154063615510366
oct446061154520550
978501783535758
1020210131313000
116492083281692
122324a38103208
13b37a65578675
144dc265ac4636
15250aa29a5a85
hex126189b2a168

20210131313000 has 256 divisors, whose sum is σ = 48198596659200. Its totient is φ = 7930506854400.

The previous prime is 20210131312997. The next prime is 20210131313017. The reversal of 20210131313000 is 31313101202.

It is a self number, because there is not a number n which added to its sum of digits gives 20210131313000.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11909328152 + ... + 11909329848.

It is an arithmetic number, because the mean of its divisors is an integer number (188275768200).

Almost surely, 220210131313000 is an apocalyptic number.

20210131313000 is a gapful number since it is divisible by the number (20) 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 20210131313000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24099298329600).

20210131313000 is an abundant number, since it is smaller than the sum of its proper divisors (27988465346200).

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

20210131313000 is a wasteful number, since it uses less digits than its factorization.

20210131313000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2677 (or 2663 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 20210131313000 its reverse (31313101202), we get a palindrome (20241444414202).

The spelling of 20210131313000 in words is "twenty trillion, two hundred ten billion, one hundred thirty-one million, three hundred thirteen thousand".