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55282184160 = 25357219123707
BaseRepresentation
bin110011011111000100…
…110010111111100000
312021200201011221002020
4303133010302333200
51401204214343120
641221333021440
73664641545400
oct633704627740
9167621157066
1055282184160
1121499396205
12a869a84880
1352a01cc198
142966088800
15168848b640
hexcdf132fe0

55282184160 has 288 divisors, whose sum is σ = 213233005440. Its totient is φ = 11970782208.

The previous prime is 55282184147. The next prime is 55282184161. The reversal of 55282184160 is 6148128255.

It is a super-2 number, since 2×552821841602 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55282184161) 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, 385027 + ... + 508733.

It is an arithmetic number, because the mean of its divisors is an integer number (740392380).

Almost surely, 255282184160 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55282184160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106616502720).

55282184160 is an abundant number, since it is smaller than the sum of its proper divisors (157950821280).

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

55282184160 is a wasteful number, since it uses less digits than its factorization.

55282184160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123758 (or 123743 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 42.

The spelling of 55282184160 in words is "fifty-five billion, two hundred eighty-two million, one hundred eighty-four thousand, one hundred sixty".