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10521243040 = 2557113723081
BaseRepresentation
bin10011100110001110…
…10110110110100000
31000011020120112011011
421303013112312200
5133021414234130
64500002430304
7521504042650
oct116307266640
930136515134
1010521243040
114509a70690
122057662394
13cb899c6c9
1471b488360
15418a2052a
hex2731d6da0

10521243040 has 192 divisors, whose sum is σ = 31828785408. Its totient is φ = 3190579200.

The previous prime is 10521243037. The next prime is 10521243043. The reversal of 10521243040 is 4034212501.

10521243040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (10521243037) and next prime (10521243043).

It is a super-2 number, since 2×105212430402 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (10521243043) 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 31 ways as a sum of consecutive naturals, for example, 444300 + ... + 467380.

It is an arithmetic number, because the mean of its divisors is an integer number (165774924).

Almost surely, 210521243040 is an apocalyptic number.

10521243040 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 10521243040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15914392704).

10521243040 is an abundant number, since it is smaller than the sum of its proper divisors (21307542368).

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

10521243040 is a wasteful number, since it uses less digits than its factorization.

10521243040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23151 (or 23143 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 10521243040 its reverse (4034212501), we get a palindrome (14555455541).

The spelling of 10521243040 in words is "ten billion, five hundred twenty-one million, two hundred forty-three thousand, forty".