Search a number
-
+
230465005 = 51731149587
BaseRepresentation
bin11011011110010…
…01110111101101
3121001122211112221
431233021313231
5432444340010
634511355341
75465630431
oct1557116755
9531584487
10230465005
11109100851
1265222b51
1338992b34
14228729c1
1515375dda
hexdbc9ded

230465005 has 32 divisors (see below), whose sum is σ = 304819200. Its totient is φ = 166517760.

The previous prime is 230464999. The next prime is 230465009. The reversal of 230465005 is 500564032.

It is not a de Polignac number, because 230465005 - 211 = 230462957 is a prime.

It is a super-2 number, since 2×2304650052 = 106228237059300050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230465009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 392322 + ... + 392908.

It is an arithmetic number, because the mean of its divisors is an integer number (9525600).

Almost surely, 2230465005 is an apocalyptic number.

It is an amenable number.

230465005 is a deficient number, since it is larger than the sum of its proper divisors (74354195).

230465005 is a wasteful number, since it uses less digits than its factorization.

230465005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 230465005 is about 15181.0739079948. The cubic root of 230465005 is about 613.1051955220.

The spelling of 230465005 in words is "two hundred thirty million, four hundred sixty-five thousand, five".

Divisors: 1 5 17 31 85 149 155 527 587 745 2533 2635 2935 4619 9979 12665 18197 23095 49895 78523 87463 90985 309349 392615 437315 1486871 1546745 2711353 7434355 13556765 46093001 230465005