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538471316 = 221021131849
BaseRepresentation
bin100000000110000…
…110101110010100
31101112020011210002
4200012012232110
52100322040231
6125233150432
716225634135
oct4006065624
91345204702
10538471316
11256a53519
121303bb418
1387734ba6
145172bc8c
15324170cb
hex20186b94

538471316 has 12 divisors (see below), whose sum is σ = 943254900. Its totient is φ = 268969920.

The previous prime is 538471301. The next prime is 538471337. The reversal of 538471316 is 613174835.

It can be written as a sum of positive squares in 2 ways, for example, as 114276100 + 424195216 = 10690^2 + 20596^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 538471316.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 61841 + ... + 70008.

It is an arithmetic number, because the mean of its divisors is an integer number (78604575).

Almost surely, 2538471316 is an apocalyptic number.

It is an amenable number.

538471316 is a deficient number, since it is larger than the sum of its proper divisors (404783584).

538471316 is a wasteful number, since it uses less digits than its factorization.

538471316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132874 (or 132872 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

The square root of 538471316 is about 23204.9847231150. The cubic root of 538471316 is about 813.5561352491.

The spelling of 538471316 in words is "five hundred thirty-eight million, four hundred seventy-one thousand, three hundred sixteen".

Divisors: 1 2 4 1021 2042 4084 131849 263698 527396 134617829 269235658 538471316