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52032215531520 = 21433573360629
BaseRepresentation
bin10111101010010101100011…
…01110010100000000000000
320211020020020120012200101000
423311022301232110000000
523304443434134002040
6302355134141012000
713650126543422460
oct1365126156240000
9224206216180330
1052032215531520
1115640814210594
125a04237854000
13230580335b323
14cbc530863ba0
15603726000130
hex2f52b1b94000

52032215531520 has 480 divisors, whose sum is σ = 211426105363200. Its totient is φ = 11893074296832.

The previous prime is 52032215531503. The next prime is 52032215531531. The reversal of 52032215531520 is 2513551223025.

52032215531520 is a `hidden beast` number, since 5 + 2 + 0 + 32 + 21 + 55 + 31 + 520 = 666.

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

It is a super-2 number, since 2×520322155315202 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13802566 + ... + 17163194.

It is an arithmetic number, because the mean of its divisors is an integer number (440471052840).

Almost surely, 252032215531520 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 52032215531520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105713052681600).

52032215531520 is an abundant number, since it is smaller than the sum of its proper divisors (159393889831680).

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

52032215531520 is an equidigital number, since it uses as much as digits as its factorization.

52032215531520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3360678 (or 3360646 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

Adding to 52032215531520 its reverse (2513551223025), we get a palindrome (54545766754545).

The spelling of 52032215531520 in words is "fifty-two trillion, thirty-two billion, two hundred fifteen million, five hundred thirty-one thousand, five hundred twenty".