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18097068 = 22311472917
BaseRepresentation
bin100010100001…
…0001110101100
31021001102111210
41011002032230
514113101233
61443514420
7306552063
oct105021654
937042453
1018097068
11a240660
126088a10
133998232
1425911da
1518c7163
hex11423ac

18097068 has 48 divisors (see below), whose sum is σ = 47061504. Its totient is φ = 5365440.

The previous prime is 18097043. The next prime is 18097069. The reversal of 18097068 is 86079081.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (18097069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4746 + ... + 7662.

It is an arithmetic number, because the mean of its divisors is an integer number (980448).

Almost surely, 218097068 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18097068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23530752).

18097068 is an abundant number, since it is smaller than the sum of its proper divisors (28964436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18097068 is a wasteful number, since it uses less digits than its factorization.

18097068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2982 (or 2980 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 18097068 is about 4254.0648796181. The cubic root of 18097068 is about 262.5443879586.

The spelling of 18097068 in words is "eighteen million, ninety-seven thousand, sixty-eight".

Divisors: 1 2 3 4 6 11 12 22 33 44 47 66 94 132 141 188 282 517 564 1034 1551 2068 2917 3102 5834 6204 8751 11668 17502 32087 35004 64174 96261 128348 137099 192522 274198 385044 411297 548396 822594 1508089 1645188 3016178 4524267 6032356 9048534 18097068