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11863140 = 22351631213
BaseRepresentation
bin101101010000…
…010001100100
3211022201011120
4231100101210
511014110030
61102133540
7202556262
oct55202144
924281146
1011863140
116772a53
123b812b0
1325c4913
14180b432
151095010
hexb50464

11863140 has 48 divisors (see below), whose sum is σ = 33448128. Its totient is φ = 3141504.

The previous prime is 11863133. The next prime is 11863151. The reversal of 11863140 is 4136811.

It is a self number, because there is not a number n which added to its sum of digits gives 11863140.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9174 + ... + 10386.

It is an arithmetic number, because the mean of its divisors is an integer number (696836).

Almost surely, 211863140 is an apocalyptic number.

11863140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11863140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16724064).

11863140 is an abundant number, since it is smaller than the sum of its proper divisors (21584988).

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

11863140 is a wasteful number, since it uses less digits than its factorization.

11863140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388 (or 1386 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 11863140 is about 3444.2909284786. The cubic root of 11863140 is about 228.0691541537.

Adding to 11863140 its reverse (4136811), we get a palindrome (15999951).

The spelling of 11863140 in words is "eleven million, eight hundred sixty-three thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 163 326 489 652 815 978 1213 1630 1956 2426 2445 3260 3639 4852 4890 6065 7278 9780 12130 14556 18195 24260 36390 72780 197719 395438 593157 790876 988595 1186314 1977190 2372628 2965785 3954380 5931570 11863140