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53284800000 = 2935517653
BaseRepresentation
bin110001101000000001…
…011000011000000000
312002112111202022010010
4301220001120120000
51333111402100000
640251222104520
73564306220065
oct615001303000
9162474668103
1053284800000
11206639759a3
12a3b0b7b140
13504245c673
142816ab0c6c
1515bce43d50
hexc68058600

53284800000 has 480 divisors, whose sum is σ = 188156019744. Its totient is φ = 13352960000.

The previous prime is 53284799999. The next prime is 53284800001. The reversal of 53284800000 is 848235.

It is an interprime number because it is at equal distance from previous prime (53284799999) and next prime (53284800001).

It is a tau number, because it is divible by the number of its divisors (480).

It is a super-2 number, since 2×532848000002 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53284800001) 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, 81599674 + ... + 81600326.

Almost surely, 253284800000 is an apocalyptic number.

53284800000 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 53284800000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94078009872).

53284800000 is an abundant number, since it is smaller than the sum of its proper divisors (134871219744).

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

53284800000 is an frugal number, since it uses more digits than its factorization.

53284800000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716 (or 680 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The spelling of 53284800000 in words is "fifty-three billion, two hundred eighty-four million, eight hundred thousand".