Search a number
-
+
12542384 = 242927031
BaseRepresentation
bin101111110110…
…000110110000
3212121012220202
4233312012300
511202324014
61124454332
7211415501
oct57660660
925535822
1012542384
117097308
12424a3a8
1327a1b3a
141946ba8
15117b3de
hexbf61b0

12542384 has 20 divisors (see below), whose sum is σ = 25139760. Its totient is φ = 6054720.

The previous prime is 12542359. The next prime is 12542401. The reversal of 12542384 is 48324521.

It is a happy number.

It is a super-2 number, since 2×125423842 = 314622792806912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13052 + ... + 13979.

It is an arithmetic number, because the mean of its divisors is an integer number (1256988).

Almost surely, 212542384 is an apocalyptic number.

It is an amenable number.

12542384 is an abundant number, since it is smaller than the sum of its proper divisors (12597376).

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

12542384 is a wasteful number, since it uses less digits than its factorization.

12542384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27068 (or 27062 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

The square root of 12542384 is about 3541.5228362951. The cubic root of 12542384 is about 232.3414512379.

The spelling of 12542384 in words is "twelve million, five hundred forty-two thousand, three hundred eighty-four".

Divisors: 1 2 4 8 16 29 58 116 232 464 27031 54062 108124 216248 432496 783899 1567798 3135596 6271192 12542384