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230558905 = 5431072367
BaseRepresentation
bin11011011111000…
…00110010111001
3121001211121100201
431233200302321
5433010341110
634513402201
75466501253
oct1557406271
9531747321
10230558905
11109165355
1265269361
13389c67b5
1422898cd3
1515393b3a
hexdbe0cb9

230558905 has 8 divisors (see below), whose sum is σ = 283105152. Its totient is φ = 180157488.

The previous prime is 230558899. The next prime is 230558927. The reversal of 230558905 is 509855032.

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 230558905 - 211 = 230556857 is a prime.

It is a Duffinian number.

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, 535969 + ... + 536398.

It is an arithmetic number, because the mean of its divisors is an integer number (35388144).

Almost surely, 2230558905 is an apocalyptic number.

It is an amenable number.

230558905 is a deficient number, since it is larger than the sum of its proper divisors (52546247).

230558905 is a wasteful number, since it uses less digits than its factorization.

230558905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072415.

The product of its (nonzero) digits is 54000, while the sum is 37.

The square root of 230558905 is about 15184.1662596272. The cubic root of 230558905 is about 613.1884514894.

The spelling of 230558905 in words is "two hundred thirty million, five hundred fifty-eight thousand, nine hundred five".

Divisors: 1 5 43 215 1072367 5361835 46111781 230558905