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23120120 = 2351374219
BaseRepresentation
bin101100000110…
…0100011111000
31121111121211202
41120030203320
521404320440
62143313332
7400342412
oct130144370
947447752
1023120120
1112061541
1278ab848
134a3665a
1430db9b2
15206a615
hex160c8f8

23120120 has 32 divisors (see below), whose sum is σ = 52412400. Its totient is φ = 9178368.

The previous prime is 23120039. The next prime is 23120171. The reversal of 23120120 is 2102132.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3371 + ... + 7589.

Almost surely, 223120120 is an apocalyptic number.

23120120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23120120 is an abundant number, since it is smaller than the sum of its proper divisors (29292280).

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

23120120 is a wasteful number, since it uses less digits than its factorization.

23120120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4367 (or 4363 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 23120120 is about 4808.3385904073. The cubic root of 23120120 is about 284.8809187545.

Adding to 23120120 its reverse (2102132), we get a palindrome (25222252).

The spelling of 23120120 in words is "twenty-three million, one hundred twenty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 137 274 548 685 1096 1370 2740 4219 5480 8438 16876 21095 33752 42190 84380 168760 578003 1156006 2312012 2890015 4624024 5780030 11560060 23120120