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230675521 = 437175557
BaseRepresentation
bin11011011111111…
…01010001000001
3121002001112022211
431233331101001
5433023104041
634520102121
75500465246
oct1557752101
9532045284
10230675521
11109234a2a
1265304941
1338a378bb
14228c95cd
15153b8481
hexdbfd441

230675521 has 8 divisors (see below), whose sum is σ = 239367744. Its totient is φ = 222134640.

The previous prime is 230675507. The next prime is 230675563. The reversal of 230675521 is 125576032.

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 230675521 - 213 = 230667329 is a prime.

It is a super-3 number, since 3×2306755213 (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230675581) 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, 34726 + ... + 40831.

It is an arithmetic number, because the mean of its divisors is an integer number (29920968).

Almost surely, 2230675521 is an apocalyptic number.

It is an amenable number.

230675521 is a deficient number, since it is larger than the sum of its proper divisors (8692223).

230675521 is an equidigital number, since it uses as much as digits as its factorization.

230675521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75671.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 230675521 is about 15188.0058269675. The cubic root of 230675521 is about 613.2918170215.

The spelling of 230675521 in words is "two hundred thirty million, six hundred seventy-five thousand, five hundred twenty-one".

Divisors: 1 43 71 3053 75557 3248951 5364547 230675521