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15242452992 = 21335131931
BaseRepresentation
bin11100011001000010…
…10110000000000000
31110100021100211200000
432030201112000000
5222204031443432
611000254400000
71046502466314
oct161441260000
943307324600
1015242452992
116511a70598
122b54800000
13158bb48570
14a484d7b44
155e325757c
hex38c856000

15242452992 has 672 divisors, whose sum is σ = 53432171520. Its totient is φ = 4299816960.

The previous prime is 15242452991. The next prime is 15242453059. The reversal of 15242452992 is 29925424251.

15242452992 is a `hidden beast` number, since 15 + 2 + 4 + 24 + 529 + 92 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15242452991) 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, 491692017 + ... + 491692047.

It is an arithmetic number, because the mean of its divisors is an integer number (79512160).

Almost surely, 215242452992 is an apocalyptic number.

15242452992 is a gapful number since it is divisible by the number (12) 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 15242452992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26716085760).

15242452992 is an abundant number, since it is smaller than the sum of its proper divisors (38189718528).

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

15242452992 is an equidigital number, since it uses as much as digits as its factorization.

15242452992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 68 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The spelling of 15242452992 in words is "fifteen billion, two hundred forty-two million, four hundred fifty-two thousand, nine hundred ninety-two".