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23606140 = 2254327449
BaseRepresentation
bin101101000001…
…1001101111100
31122102022112111
41122003031330
522020344030
62201543404
7404435365
oct132031574
948368474
1023606140
1112363708
127aa4b64
134b7693c
1431c6b6c
15211462a
hex168337c

23606140 has 24 divisors (see below), whose sum is σ = 50727600. Its totient is φ = 9222528.

The previous prime is 23606137. The next prime is 23606153. The reversal of 23606140 is 4160632.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 12865 + ... + 14584.

It is an arithmetic number, because the mean of its divisors is an integer number (2113650).

Almost surely, 223606140 is an apocalyptic number.

23606140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23606140 is an abundant number, since it is smaller than the sum of its proper divisors (27121460).

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

23606140 is a wasteful number, since it uses less digits than its factorization.

23606140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27501 (or 27499 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 23606140 is about 4858.6150289975. The cubic root of 23606140 is about 286.8633017825.

Adding to 23606140 its reverse (4160632), we get a palindrome (27766772).

The spelling of 23606140 in words is "twenty-three million, six hundred six thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 43 86 172 215 430 860 27449 54898 109796 137245 274490 548980 1180307 2360614 4721228 5901535 11803070 23606140