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54215100000 = 253255591021
BaseRepresentation
bin110010011111011110…
…001100011001100000
312011221100021102210200
4302133132030121200
51342013031200000
640523413425200
73626333514015
oct623736143140
9164840242720
1054215100000
1120aa1013076
12a61063b200
135160104739
1428a447770c
151624958500
hexc9f78c660

54215100000 has 432 divisors, whose sum is σ = 196163538480. Its totient is φ = 14198400000.

The previous prime is 54215099989. The next prime is 54215100047. The reversal of 54215100000 is 151245.

54215100000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 53099490 + ... + 53100510.

It is an arithmetic number, because the mean of its divisors is an integer number (454082265).

Almost surely, 254215100000 is an apocalyptic number.

54215100000 is a gapful number since it is divisible by the number (50) 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 54215100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98081769240).

54215100000 is an abundant number, since it is smaller than the sum of its proper divisors (141948438480).

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

54215100000 is a wasteful number, since it uses less digits than its factorization.

54215100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121 (or 1090 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

Adding to 54215100000 its reverse (151245), we get a palindrome (54215251245).

The spelling of 54215100000 in words is "fifty-four billion, two hundred fifteen million, one hundred thousand".