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52373018880 = 283457213261
BaseRepresentation
bin110000110001101011…
…001101100100000000
312000011222002000120000
4300301223031210000
51324224443101010
640020531320000
73532565213100
oct606153154400
9160158060500
1052373018880
1120236227286
12a197750000
134c2859c800
14276b969200
151567d8b7c0
hexc31acd900

52373018880 has 1620 divisors, whose sum is σ = 239924807892. Its totient is φ = 10868981760.

The previous prime is 52373018861. The next prime is 52373018881. The reversal of 52373018880 is 8881037325.

52373018880 is a `hidden beast` number, since 523 + 7 + 30 + 18 + 8 + 80 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 25044961536 + 27328057344 = 158256^2 + 165312^2 .

It is a tau number, because it is divible by the number of its divisors (1620).

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

It is not an unprimeable number, because it can be changed into a prime (52373018881) by changing a digit.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 858574050 + ... + 858574110.

Almost surely, 252373018880 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 52373018880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119962403946).

52373018880 is an abundant number, since it is smaller than the sum of its proper divisors (187551789012).

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

52373018880 is a wasteful number, since it uses less digits than its factorization.

52373018880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 52373018880 in words is "fifty-two billion, three hundred seventy-three million, eighteen thousand, eight hundred eighty".