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18929325 = 352252391
BaseRepresentation
bin100100000110…
…1011010101101
31022121201011010
41020031122231
514321214300
61513415433
7316616352
oct110153255
938551133
1018929325
11a759978
12640a579
133bc9cac
14272a629
1519dda50
hex120d6ad

18929325 has 12 divisors (see below), whose sum is σ = 31296608. Its totient is φ = 10095600.

The previous prime is 18929293. The next prime is 18929327. The reversal of 18929325 is 52392981.

It is not a de Polignac number, because 18929325 - 25 = 18929293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18929327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 126121 + ... + 126270.

Almost surely, 218929325 is an apocalyptic number.

18929325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18929325 is a deficient number, since it is larger than the sum of its proper divisors (12367283).

18929325 is a wasteful number, since it uses less digits than its factorization.

18929325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252404 (or 252399 counting only the distinct ones).

The product of its digits is 38880, while the sum is 39.

The square root of 18929325 is about 4350.7844120342. The cubic root of 18929325 is about 266.5088953895.

The spelling of 18929325 in words is "eighteen million, nine hundred twenty-nine thousand, three hundred twenty-five".

Divisors: 1 3 5 15 25 75 252391 757173 1261955 3785865 6309775 18929325