Search a number
-
+
11938512 = 243248719
BaseRepresentation
bin101101100010…
…101011010000
3211110112120010
4231202223100
511024013022
61103514520
7203322105
oct55425320
924415503
1011938512
116814643
123bb8a40
132620011
14182aaac
1510ac50c
hexb62ad0

11938512 has 20 divisors (see below), whose sum is σ = 30841280. Its totient is φ = 3979488.

The previous prime is 11938501. The next prime is 11938519. The reversal of 11938512 is 21583911.

It is a self number, because there is not a number n which added to its sum of digits gives 11938512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11938519) 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 3 ways as a sum of consecutive naturals, for example, 124312 + ... + 124407.

It is an arithmetic number, because the mean of its divisors is an integer number (1542064).

Almost surely, 211938512 is an apocalyptic number.

11938512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11938512 is an abundant number, since it is smaller than the sum of its proper divisors (18902768).

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

11938512 is a wasteful number, since it uses less digits than its factorization.

11938512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248730 (or 248724 counting only the distinct ones).

The product of its digits is 2160, while the sum is 30.

The square root of 11938512 is about 3455.2151886677. The cubic root of 11938512 is about 228.5511443309.

The spelling of 11938512 in words is "eleven million, nine hundred thirty-eight thousand, five hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 48 248719 497438 746157 994876 1492314 1989752 2984628 3979504 5969256 11938512