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18030015325 = 5271915135911
BaseRepresentation
bin10000110010101011…
…000011001101011101
31201112112122200022101
4100302223003031131
5243411140442300
612141033445101
71205541413230
oct206253031535
951475580271
1018030015325
117712523413
1235b2270791
13191450c52a
14c30801417
15707d36b6a
hex432ac335d

18030015325 has 48 divisors (see below), whose sum is σ = 27074775040. Its totient is φ = 11634840000.

The previous prime is 18030015323. The next prime is 18030015331. The reversal of 18030015325 is 52351003081.

It is not a de Polignac number, because 18030015325 - 21 = 18030015323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18030015293 and 18030015302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18030015323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 484120 + ... + 520030.

Almost surely, 218030015325 is an apocalyptic number.

It is an amenable number.

18030015325 is a deficient number, since it is larger than the sum of its proper divisors (9044759715).

18030015325 is a wasteful number, since it uses less digits than its factorization.

18030015325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36098 (or 36093 counting only the distinct ones).

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

It can be divided in two parts, 180300 and 15325, that added together give a triangular number (195625 = T625).

The spelling of 18030015325 in words is "eighteen billion, thirty million, fifteen thousand, three hundred twenty-five".

Divisors: 1 5 7 19 25 35 95 133 151 175 475 665 755 1057 2869 3325 3775 5285 14345 20083 26425 35911 71725 100415 179555 251377 502075 682309 897775 1256885 3411545 4776163 5422561 6284425 17057725 23880815 27112805 37957927 103028659 119404075 135564025 189789635 515143295 721200613 948948175 2575716475 3606003065 18030015325