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5217959520 = 253356119801
BaseRepresentation
bin1001101110000001…
…11011111001100000
3111110122111210211000
410313000323321200
541141244201040
62221434552000
7243206631654
oct46700737140
914418453730
105217959520
112238447244
121017598600
13652063617
14376ddaa64
1520815c130
hex13703be60

5217959520 has 192 divisors, whose sum is σ = 18563186880. Its totient is φ = 1368576000.

The previous prime is 5217959519. The next prime is 5217959567. The reversal of 5217959520 is 259597125.

5217959520 is a `hidden beast` number, since 5 + 2 + 1 + 79 + 59 + 520 = 666.

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 polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 253620 + ... + 273420.

It is an arithmetic number, because the mean of its divisors is an integer number (96683265).

Almost surely, 25217959520 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 5217959520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9281593440).

5217959520 is an abundant number, since it is smaller than the sum of its proper divisors (13345227360).

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

5217959520 is a wasteful number, since it uses less digits than its factorization.

5217959520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19886 (or 19872 counting only the distinct ones).

The product of its (nonzero) digits is 283500, while the sum is 45.

The square root of 5217959520 is about 72235.4450391219. The cubic root of 5217959520 is about 1734.4704366476.

The spelling of 5217959520 in words is "five billion, two hundred seventeen million, nine hundred fifty-nine thousand, five hundred twenty".