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538106500 = 22531076213
BaseRepresentation
bin100000000100101…
…101101010000100
31101111112122100101
4200010231222010
52100223402000
6125221253444
716222554421
oct4004555204
91344478311
10538106500
11256824418
12130264284
1387637b19
1451674d48
1532393e6a
hex2012da84

538106500 has 24 divisors (see below), whose sum is σ = 1175225688. Its totient is φ = 215242400.

The previous prime is 538106489. The next prime is 538106501. The reversal of 538106500 is 5601835.

It can be written as a sum of positive squares in 4 ways, for example, as 68690944 + 469415556 = 8288^2 + 21666^2 .

It is not an unprimeable number, because it can be changed into a prime (538106501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 537607 + ... + 538606.

It is an arithmetic number, because the mean of its divisors is an integer number (48967737).

Almost surely, 2538106500 is an apocalyptic number.

538106500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

538106500 is an abundant number, since it is smaller than the sum of its proper divisors (637119188).

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

538106500 is a wasteful number, since it uses less digits than its factorization.

538106500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076232 (or 1076220 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 538106500 is about 23197.1226663998. The cubic root of 538106500 is about 813.3723647995.

The spelling of 538106500 in words is "five hundred thirty-eight million, one hundred six thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 500 1076213 2152426 4304852 5381065 10762130 21524260 26905325 53810650 107621300 134526625 269053250 538106500