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31054325200000 = 2755292677097
BaseRepresentation
bin1110000111110011001100…
…00001011011010010000000
311001221202122022120021120121
413003321212001123102000
513032243224222400000
6150014054323150024
76353413061621434
oct703714601332200
9131852568507517
1031054325200000
119993079a99853
123596652815314
13144354457b23b
1479507472a9c4
1538cbda995b1a
hex1c3e6605b480

31054325200000 has 192 divisors, whose sum is σ = 79994097628200. Its totient is φ = 11993390080000.

The previous prime is 31054325199991. The next prime is 31054325200001. The reversal of 31054325200000 is 252345013.

It can be written as a sum of positive squares in 12 ways, for example, as 24661235456064 + 6393089743936 = 4966008^2 + 2528456^2 .

It is a super-2 number, since 2×310543252000002 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (31054325200001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10261452 + ... + 12938548.

Almost surely, 231054325200000 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 31054325200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39997048814100).

31054325200000 is an abundant number, since it is smaller than the sum of its proper divisors (48939772428200).

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

31054325200000 is an frugal number, since it uses more digits than its factorization.

31054325200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2677165 (or 2677133 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 31054325200000 its reverse (252345013), we get a palindrome (31054577545013).

The spelling of 31054325200000 in words is "thirty-one trillion, fifty-four billion, three hundred twenty-five million, two hundred thousand".