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5197086720 = 21432571953
BaseRepresentation
bin1001101011100010…
…10100000000000000
3111102012020100201100
410311301110000000
541120423233340
62215411334400
7242534336220
oct46561240000
914365210640
105197086720
1122276901a1
1210105b1400
1364a935b57
14374326080
152063d7830
hex135c54000

5197086720 has 720 divisors, whose sum is σ = 22082336640. Its totient is φ = 1104150528.

The previous prime is 5197086689. The next prime is 5197086731. The reversal of 5197086720 is 276807915.

5197086720 is a `hidden beast` number, since 519 + 70 + 8 + 67 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

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 47 ways as a sum of consecutive naturals, for example, 98058214 + ... + 98058266.

It is an arithmetic number, because the mean of its divisors is an integer number (30669912).

Almost surely, 25197086720 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 5197086720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11041168320).

5197086720 is an abundant number, since it is smaller than the sum of its proper divisors (16885249920).

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

5197086720 is a wasteful number, since it uses less digits than its factorization.

5197086720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The square root of 5197086720 is about 72090.8227169034. The cubic root of 5197086720 is about 1732.1546121580.

The spelling of 5197086720 in words is "five billion, one hundred ninety-seven million, eighty-six thousand, seven hundred twenty".