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83685904 = 2422872
BaseRepresentation
bin1001111110011…
…11001000010000
312211110200110221
410333033020100
5132410422104
612145402424
72034214141
oct477171020
9184420427
1083685904
1143269505
1224039414
1314450cb3
14b185ac8
157530c54
hex4fcf210

83685904 has 15 divisors (see below), whose sum is σ = 162212367. Its totient is φ = 41824656.

The previous prime is 83685863. The next prime is 83685913. The reversal of 83685904 is 40958638.

The square root of 83685904 is 9148.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 35449 + ... + 37735.

Almost surely, 283685904 is an apocalyptic number.

83685904 is the 9148-th square number.

It is an amenable number.

83685904 is a deficient number, since it is larger than the sum of its proper divisors (78526463).

83685904 is an frugal number, since it uses more digits than its factorization.

83685904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4582 (or 2289 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The cubic root of 83685904 is about 437.4053633671.

The spelling of 83685904 in words is "eighty-three million, six hundred eighty-five thousand, nine hundred four".

Divisors: 1 2 4 8 16 2287 4574 9148 18296 36592 5230369 10460738 20921476 41842952 83685904