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230517020 = 22511525851
BaseRepresentation
bin11011011110101…
…10100100011100
3121001202110220102
431233112210130
5433003021040
634512440232
75466235166
oct1557264434
9531673812
10230517020
11109136938
1265249078
13389b0706
1422887936
1515386515
hexdbd691c

230517020 has 12 divisors (see below), whose sum is σ = 484085784. Its totient is φ = 92206800.

The previous prime is 230517019. The next prime is 230517037. The reversal of 230517020 is 20715032.

230517020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 11525851 = 230517020 / (2 + 3 + 0 + 5 + 1 + 7 + 0 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 230516983 and 230517001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5762906 + ... + 5762945.

It is an arithmetic number, because the mean of its divisors is an integer number (40340482).

Almost surely, 2230517020 is an apocalyptic number.

230517020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230517020 is an abundant number, since it is smaller than the sum of its proper divisors (253568764).

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

230517020 is a wasteful number, since it uses less digits than its factorization.

230517020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11525860 (or 11525858 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 230517020 is about 15182.7869641907. The cubic root of 230517020 is about 613.1513171560.

The spelling of 230517020 in words is "two hundred thirty million, five hundred seventeen thousand, twenty".

Divisors: 1 2 4 5 10 20 11525851 23051702 46103404 57629255 115258510 230517020