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1830904325 = 52616411873
BaseRepresentation
bin110110100100001…
…0110001000000101
311201121011120120022
41231020112020011
512222202414300
6501402344525
763241300325
oct15510261005
94647146508
101830904325
1185a552578
124311bb145
13232420853
1413523d285
15aab10285
hex6d216205

1830904325 has 24 divisors (see below), whose sum is σ = 2312373576. Its totient is φ = 1437696000.

The previous prime is 1830904303. The next prime is 1830904349. The reversal of 1830904325 is 5234090381.

It can be written as a sum of positive squares in 12 ways, for example, as 1147447876 + 683456449 = 33874^2 + 26143^2 .

It is not a de Polignac number, because 1830904325 - 26 = 1830904261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 976589 + ... + 978461.

It is an arithmetic number, because the mean of its divisors is an integer number (96348899).

Almost surely, 21830904325 is an apocalyptic number.

It is an amenable number.

1830904325 is a deficient number, since it is larger than the sum of its proper divisors (481469251).

1830904325 is a wasteful number, since it uses less digits than its factorization.

1830904325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2585 (or 2580 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 1830904325 is about 42789.0678211152. The cubic root of 1830904325 is about 1223.3626493448.

The spelling of 1830904325 in words is "one billion, eight hundred thirty million, nine hundred four thousand, three hundred twenty-five".

Divisors: 1 5 25 61 305 641 1525 1873 3205 9365 16025 39101 46825 114253 195505 571265 977525 1200593 2856325 6002965 30014825 73236173 366180865 1830904325