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538288872 = 233112388651
BaseRepresentation
bin100000000101011…
…010001011101000
31101111212220111220
4200011122023220
52100300220442
6125225222040
716224244212
oct4005321350
91344786456
10538288872
11256939440
12130331920
138769cb34
14516c15b2
15323cceec
hex2015a2e8

538288872 has 64 divisors (see below), whose sum is σ = 1531906560. Its totient is φ = 156024000.

The previous prime is 538288871. The next prime is 538288889. The reversal of 538288872 is 278882835.

It is not an unprimeable number, because it can be changed into a prime (538288871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38254 + ... + 50397.

It is an arithmetic number, because the mean of its divisors is an integer number (23936040).

Almost surely, 2538288872 is an apocalyptic number.

It is an amenable number.

538288872 is an abundant number, since it is smaller than the sum of its proper divisors (993617688).

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

538288872 is a wasteful number, since it uses less digits than its factorization.

538288872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88694 (or 88690 counting only the distinct ones).

The product of its digits is 1720320, while the sum is 51.

The square root of 538288872 is about 23201.0532519539. The cubic root of 538288872 is about 813.4642422688.

The spelling of 538288872 in words is "five hundred thirty-eight million, two hundred eighty-eight thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 11 12 22 23 24 33 44 46 66 69 88 92 132 138 184 253 264 276 506 552 759 1012 1518 2024 3036 6072 88651 177302 265953 354604 531906 709208 975161 1063812 1950322 2038973 2127624 2925483 3900644 4077946 5850966 6116919 7801288 8155892 11701932 12233838 16311784 22428703 23403864 24467676 44857406 48935352 67286109 89714812 134572218 179429624 269144436 538288872