Search a number
-
+
538951140 = 2232571322531
BaseRepresentation
bin100000000111111…
…011110111100100
31101120010112222100
4200013323313210
52100432414030
6125251332100
716233003060
oct4007736744
91346115870
10538951140
11257250a72
121305b1030
1387872400
1451814aa0
15324ae360
hex201fbde4

538951140 has 216 divisors, whose sum is σ = 2023939008. Its totient is φ = 113667840.

The previous prime is 538951129. The next prime is 538951141. The reversal of 538951140 is 41159835.

538951140 is a `hidden beast` number, since 538 + 9 + 5 + 114 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 538951095 and 538951104.

It is not an unprimeable number, because it can be changed into a prime (538951141) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 211675 + ... + 214205.

It is an arithmetic number, because the mean of its divisors is an integer number (9370088).

Almost surely, 2538951140 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 538951140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1011969504).

538951140 is an abundant number, since it is smaller than the sum of its proper divisors (1484987868).

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

538951140 is a wasteful number, since it uses less digits than its factorization.

538951140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2579 (or 2561 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 538951140 is about 23215.3212340471. The cubic root of 538951140 is about 813.7977128755.

The spelling of 538951140 in words is "five hundred thirty-eight million, nine hundred fifty-one thousand, one hundred forty".