Search a number
-
+
538017887 = 1117792461
BaseRepresentation
bin100000000100011…
…000000001011111
31101111101010210102
4200010120001133
52100213033022
6125215331315
716222035161
oct4004300137
91344333712
10538017887
11256773890
12130220b3b
13876066a4
1451650931
1532377a92
hex2011805f

538017887 has 24 divisors (see below), whose sum is σ = 630785232. Its totient is φ = 453523200.

The previous prime is 538017881. The next prime is 538017901. The reversal of 538017887 is 788710835.

It is not a de Polignac number, because 538017887 - 220 = 536969311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538017881) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1166837 + ... + 1167297.

It is an arithmetic number, because the mean of its divisors is an integer number (26282718).

Almost surely, 2538017887 is an apocalyptic number.

538017887 is a deficient number, since it is larger than the sum of its proper divisors (92767345).

538017887 is a wasteful number, since it uses less digits than its factorization.

538017887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647 (or 568 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 47.

The square root of 538017887 is about 23195.2125879458. The cubic root of 538017887 is about 813.3277148265.

The spelling of 538017887 in words is "five hundred thirty-eight million, seventeen thousand, eight hundred eighty-seven".

Divisors: 1 11 17 79 187 461 869 1343 5071 6241 7837 14773 36419 68651 86207 106097 400609 619123 1167067 2877101 6810353 31648111 48910717 538017887