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230223131 = 1814992549
BaseRepresentation
bin11011011100011…
…10110100011011
3121001012112202122
431232032310123
5432414120011
634502251455
75463602315
oct1556166433
9531175678
10230223131
11108a56056
1265126b8b
1338909a08
142280c7b5
15153293db
hexdb8ed1b

230223131 has 8 divisors (see below), whose sum is σ = 232050000. Its totient is φ = 228402720.

The previous prime is 230223107. The next prime is 230223179. The reversal of 230223131 is 131322032.

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 230223131 - 218 = 229960987 is a prime.

It is a super-2 number, since 2×2302231312 = 106005380094886322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230223101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89045 + ... + 91593.

It is an arithmetic number, because the mean of its divisors is an integer number (29006250).

Almost surely, 2230223131 is an apocalyptic number.

230223131 is a deficient number, since it is larger than the sum of its proper divisors (1826869).

230223131 is a wasteful number, since it uses less digits than its factorization.

230223131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3229.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 230223131 is about 15173.1055160109. The cubic root of 230223131 is about 612.8906349429.

Adding to 230223131 its reverse (131322032), we get a palindrome (361545163).

The spelling of 230223131 in words is "two hundred thirty million, two hundred twenty-three thousand, one hundred thirty-one".

Divisors: 1 181 499 2549 90319 461369 1271951 230223131