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230803031 = 10915713487
BaseRepresentation
bin11011100000111…
…00011001010111
3121002022000020102
431300130121113
5433041144111
634522524315
75501536064
oct1560343127
9532260212
10230803031
11109311808
126536669b
1338a80954
142291dc6b
15153e113b
hexdc1c657

230803031 has 8 divisors (see below), whose sum is σ = 234421440. Its totient is φ = 227212128.

The previous prime is 230803019. The next prime is 230803039. The reversal of 230803031 is 130308032.

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

It is a cyclic number.

It is not a de Polignac number, because 230803031 - 218 = 230540887 is a prime.

It is a super-2 number, since 2×2308030312 = 106540078237573922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230802994 and 230803012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230803039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10370 + ... + 23856.

It is an arithmetic number, because the mean of its divisors is an integer number (29302680).

Almost surely, 2230803031 is an apocalyptic number.

230803031 is a deficient number, since it is larger than the sum of its proper divisors (3618409).

230803031 is a wasteful number, since it uses less digits than its factorization.

230803031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13753.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 230803031 is about 15192.2029673119. The cubic root of 230803031 is about 613.4047988624.

The spelling of 230803031 in words is "two hundred thirty million, eight hundred three thousand, thirty-one".

Divisors: 1 109 157 13487 17113 1470083 2117459 230803031