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53498880 = 21035543
BaseRepresentation
bin1100110000010…
…1010000000000
310201200000200000
43030011100000
5102143431010
65150400000
71216506261
oct314052000
9121600600
1053498880
1128220556
1215b00000
13b111b56
147168968
154a6b7c0
hex3305400

53498880 has 264 divisors, whose sum is σ = 196708512. Its totient is φ = 13934592.

The previous prime is 53498857. The next prime is 53498917. The reversal of 53498880 is 8889435.

It is a super-2 number, since 2×534988802 = 5724260322508800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1244139 + ... + 1244181.

It is an arithmetic number, because the mean of its divisors is an integer number (745108).

Almost surely, 253498880 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 53498880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98354256).

53498880 is an abundant number, since it is smaller than the sum of its proper divisors (143209632).

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

53498880 is an equidigital number, since it uses as much as digits as its factorization.

53498880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83 (or 53 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 53498880 is about 7314.2928571394. The cubic root of 53498880 is about 376.8034727255.

The spelling of 53498880 in words is "fifty-three million, four hundred ninety-eight thousand, eight hundred eighty".