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230607621 = 338541023
BaseRepresentation
bin11011011111011…
…00101100000101
3121001221002012000
431233230230011
5433013420441
634514415513
75500063266
oct1557545405
9531832160
10230607621
11109198a12
1265291599
1338a12a1a
14228ac96d
15153a32b6
hexdbecb05

230607621 has 8 divisors (see below), whose sum is σ = 341640960. Its totient is φ = 153738396.

The previous prime is 230607607. The next prime is 230607631. The reversal of 230607621 is 126706032.

It is a happy number.

230607621 is a `hidden beast` number, since 2 + 30 + 6 + 0 + 7 + 621 = 666.

It is not a de Polignac number, because 230607621 - 25 = 230607589 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 8541023 = 230607621 / (2 + 3 + 0 + 6 + 0 + 7 + 6 + 2 + 1).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230607631) 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, 4270485 + ... + 4270538.

It is an arithmetic number, because the mean of its divisors is an integer number (42705120).

Almost surely, 2230607621 is an apocalyptic number.

It is an amenable number.

230607621 is a deficient number, since it is larger than the sum of its proper divisors (111033339).

230607621 is an equidigital number, since it uses as much as digits as its factorization.

230607621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8541032 (or 8541026 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 230607621 is about 15185.7703459522. The cubic root of 230607621 is about 613.2316363823.

The spelling of 230607621 in words is "two hundred thirty million, six hundred seven thousand, six hundred twenty-one".

Divisors: 1 3 9 27 8541023 25623069 76869207 230607621