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1020210231040 = 285721113113749
BaseRepresentation
bin11101101100010010100…
…01001011011100000000
310121112100012112112111121
432312021101023130000
5113203342304343130
62100402245522024
7133464521611300
oct16661121133400
93545305475447
101020210231040
1136373a095680
12145882413314
13752893a0530
1437542615600
151b810bacd7a
hexed8944b700

1020210231040 has 432 divisors, whose sum is σ = 3339701820000. Its totient is φ = 293524439040.

The previous prime is 1020210231011. The next prime is 1020210231049. The reversal of 1020210231040 is 401320120201.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020210231049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8912086 + ... + 9025834.

It is an arithmetic number, because the mean of its divisors is an integer number (7730791250).

Almost surely, 21020210231040 is an apocalyptic number.

1020210231040 is a gapful number since it is divisible by the number (10) 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 1020210231040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1669850910000).

1020210231040 is an abundant number, since it is smaller than the sum of its proper divisors (2319491588960).

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

1020210231040 is a wasteful number, since it uses less digits than its factorization.

1020210231040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113808 (or 113787 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1020210231040 its reverse (401320120201), we get a palindrome (1421530351241).

The spelling of 1020210231040 in words is "one trillion, twenty billion, two hundred ten million, two hundred thirty-one thousand, forty".