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23120115 = 351541341
BaseRepresentation
bin101100000110…
…0100011110011
31121111121211120
41120030203303
521404320430
62143313323
7400342404
oct130144363
947447746
1023120115
1112061537
1278ab843
134a36655
1430db9ab
15206a610
hex160c8f3

23120115 has 8 divisors (see below), whose sum is σ = 36992208. Its totient is φ = 12330720.

The previous prime is 23120039. The next prime is 23120171. The reversal of 23120115 is 51102132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23120115 - 219 = 22595827 is a prime.

It is a super-2 number, since 2×231201152 = 1069079435226450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 1541341 = 23120115 / (2 + 3 + 1 + 2 + 0 + 1 + 1 + 5).

It is a junction number, because it is equal to n+sod(n) for n = 23120094 and 23120103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 770656 + ... + 770685.

It is an arithmetic number, because the mean of its divisors is an integer number (4624026).

Almost surely, 223120115 is an apocalyptic number.

23120115 is a deficient number, since it is larger than the sum of its proper divisors (13872093).

23120115 is a wasteful number, since it uses less digits than its factorization.

23120115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1541349.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 23120115 is about 4808.3380704772. The cubic root of 23120115 is about 284.8808982182.

Adding to 23120115 its reverse (51102132), we get a palindrome (74222247).

The spelling of 23120115 in words is "twenty-three million, one hundred twenty thousand, one hundred fifteen".

Divisors: 1 3 5 15 1541341 4624023 7706705 23120115