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52121160 = 233257133743
BaseRepresentation
bin1100011011010…
…0111001001000
310122002000210100
43012310321020
5101320334120
65101045400
71202010510
oct306647110
9118060710
1052121160
112746a443
1215556860
13aa4ba30
146cca840
154898490
hex31b4e48

52121160 has 384 divisors, whose sum is σ = 219098880. Its totient is φ = 10450944.

The previous prime is 52121143. The next prime is 52121177. The reversal of 52121160 is 6112125.

It is an interprime number because it is at equal distance from previous prime (52121143) and next prime (52121177).

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

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1212099 + ... + 1212141.

It is an arithmetic number, because the mean of its divisors is an integer number (570570).

Almost surely, 252121160 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 52121160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109549440).

52121160 is an abundant number, since it is smaller than the sum of its proper divisors (166977720).

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

52121160 is a wasteful number, since it uses less digits than its factorization.

52121160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117 (or 110 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 52121160 is about 7219.4985975482. The cubic root of 52121160 is about 373.5407825233.

Adding to 52121160 its reverse (6112125), we get a palindrome (58233285).

The spelling of 52121160 in words is "fifty-two million, one hundred twenty-one thousand, one hundred sixty".