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18242952 = 2337138353
BaseRepresentation
bin100010110010…
…1110110001000
31021022211121220
41011211312020
514132233302
61451002040
7311030310
oct105456610
937284556
1018242952
11a330222
126139320
133a19760
1425cc440
1519054bc
hex1165d88

18242952 has 64 divisors (see below), whose sum is σ = 56138880. Its totient is φ = 4810752.

The previous prime is 18242951. The next prime is 18242963. The reversal of 18242952 is 25924281.

It is not an unprimeable number, because it can be changed into a prime (18242951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1993 + ... + 6360.

It is an arithmetic number, because the mean of its divisors is an integer number (877170).

Almost surely, 218242952 is an apocalyptic number.

18242952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18242952 is an abundant number, since it is smaller than the sum of its proper divisors (37895928).

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

18242952 is a wasteful number, since it uses less digits than its factorization.

18242952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8382 (or 8378 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 18242952 is about 4271.1768869950. The cubic root of 18242952 is about 263.2479746131.

It can be divided in two parts, 182 and 42952, that added together give a palindrome (43134).

The spelling of 18242952 in words is "eighteen million, two hundred forty-two thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 7 8 12 13 14 21 24 26 28 39 42 52 56 78 84 91 104 156 168 182 273 312 364 546 728 1092 2184 8353 16706 25059 33412 50118 58471 66824 100236 108589 116942 175413 200472 217178 233884 325767 350826 434356 467768 651534 701652 760123 868712 1303068 1403304 1520246 2280369 2606136 3040492 4560738 6080984 9121476 18242952