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538872750 = 23453132389
BaseRepresentation
bin100000000111101…
…000101110101110
31101112222120110000
4200013220232232
52100422412000
6125245525130
716232225403
oct4007505656
91345876400
10538872750
112571a8089
121305737a6
1387845820
14517d42aa
1532496000
hex201e8bae

538872750 has 320 divisors, whose sum is σ = 1712430720. Its totient is φ = 125452800.

The previous prime is 538872709. The next prime is 538872757. The reversal of 538872750 is 57278835.

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

It is a junction number, because it is equal to n+sod(n) for n = 538872696 and 538872705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538872757) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 6054706 + ... + 6054794.

It is an arithmetic number, because the mean of its divisors is an integer number (5351346).

Almost surely, 2538872750 is an apocalyptic number.

538872750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 538872750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (856215360).

538872750 is an abundant number, since it is smaller than the sum of its proper divisors (1173557970).

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

538872750 is a wasteful number, since it uses less digits than its factorization.

538872750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154 (or 135 counting only the distinct ones).

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

The square root of 538872750 is about 23213.6328479624. The cubic root of 538872750 is about 813.7582555598.

The spelling of 538872750 in words is "five hundred thirty-eight million, eight hundred seventy-two thousand, seven hundred fifty".