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5172748560 = 2433572947251
BaseRepresentation
bin1001101000101000…
…11110000100010000
3111100111102212001000
410310110132010100
541043210423220
62213141542000
7242120431410
oct46424360420
914314385030
105172748560
112214977611
121004414900
13645893c85
14370dcc640
152041cb390
hex13451e110

5172748560 has 640 divisors, whose sum is σ = 21598617600. Its totient is φ = 1112832000.

The previous prime is 5172748549. The next prime is 5172748561. The reversal of 5172748560 is 658472715.

5172748560 is a `hidden beast` number, since 5 + 17 + 2 + 74 + 8 + 560 = 666.

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 (5172748561) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 20608435 + ... + 20608685.

It is an arithmetic number, because the mean of its divisors is an integer number (33747840).

Almost surely, 25172748560 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 5172748560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10799308800).

5172748560 is an abundant number, since it is smaller than the sum of its proper divisors (16425869040).

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

5172748560 is a wasteful number, since it uses less digits than its factorization.

5172748560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356 (or 344 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The square root of 5172748560 is about 71921.8225575520. The cubic root of 5172748560 is about 1729.4464644041.

The spelling of 5172748560 in words is "five billion, one hundred seventy-two million, seven hundred forty-eight thousand, five hundred sixty".