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40231203421200 = 243521123111318831
BaseRepresentation
bin10010010010111000011101…
…00101101011110000010000
312021110001202201221201201120
421021130032211223300100
520233122001033434300
6221321543144002240
711321415503514141
oct1111341645536020
9167401681851646
1040231203421200
1111900a59562480
1246190b0760380
13195aa2b3a047c
149d12b4785ac8
1549b78c77e3a0
hex24970e96bc10

40231203421200 has 240 divisors, whose sum is σ = 140650710730752. Its totient is φ = 9748791360000.

The previous prime is 40231203421181. The next prime is 40231203421207. The reversal of 40231203421200 is 212430213204.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (40231203421207) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29845785 + ... + 31164615.

Almost surely, 240231203421200 is an apocalyptic number.

40231203421200 is a gapful number since it is divisible by the number (40) 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 40231203421200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70325355365376).

40231203421200 is an abundant number, since it is smaller than the sum of its proper divisors (100419507309552).

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

40231203421200 is a wasteful number, since it uses less digits than its factorization.

40231203421200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321174 (or 1321163 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 40231203421200 its reverse (212430213204), we get a palindrome (40443633634404).

The spelling of 40231203421200 in words is "forty trillion, two hundred thirty-one billion, two hundred three million, four hundred twenty-one thousand, two hundred".