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124530053440 = 26513372293533
BaseRepresentation
bin111001111111010010…
…0011101000101000000
3102220102201021011120111
41303332210131011000
54020014143202230
6133112555121104
711665653663202
oct1637644350500
9386381234514
10124530053440
11488a3a72341
1220174a43194
13b987884270
146054c36772
15338ca2d92a
hex1cfe91d140

124530053440 has 224 divisors, whose sum is σ = 329504222880. Its totient is φ = 44529647616.

The previous prime is 124530053377. The next prime is 124530053449. The reversal of 124530053440 is 44350035421.

It can be written as a sum of positive squares in 16 ways, for example, as 112896 + 124529940544 = 336^2 + 352888^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124530053449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35245914 + ... + 35249446.

It is an arithmetic number, because the mean of its divisors is an integer number (1471000995).

Almost surely, 2124530053440 is an apocalyptic number.

124530053440 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 124530053440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164752111440).

124530053440 is an abundant number, since it is smaller than the sum of its proper divisors (204974169440).

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

124530053440 is a wasteful number, since it uses less digits than its factorization.

124530053440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3829 (or 3819 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 124530053440 its reverse (44350035421), we get a palindrome (168880088861).

The spelling of 124530053440 in words is "one hundred twenty-four billion, five hundred thirty million, fifty-three thousand, four hundred forty".