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230545345 = 5233197893
BaseRepresentation
bin11011011110111…
…01011111000001
3121001210220202111
431233131133001
5433004422340
634513215321
75466413602
oct1557353701
9531726674
10230545345
11109156148
1265261541
13389c0584
1422893da9
151538eaea
hexdbdd7c1

230545345 has 8 divisors (see below), whose sum is σ = 277843176. Its totient is φ = 183643776.

The previous prime is 230545253. The next prime is 230545351. The reversal of 230545345 is 543545032.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 23386896 + 207158449 = 4836^2 + 14393^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-230545345 is a prime.

It is a super-2 number, since 2×2305453452 = 106302312202338050, which contains 22 as substring.

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, 97782 + ... + 100111.

It is an arithmetic number, because the mean of its divisors is an integer number (34730397).

Almost surely, 2230545345 is an apocalyptic number.

It is an amenable number.

230545345 is a deficient number, since it is larger than the sum of its proper divisors (47297831).

230545345 is a wasteful number, since it uses less digits than its factorization.

230545345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198131.

The product of its (nonzero) digits is 36000, while the sum is 31.

The square root of 230545345 is about 15183.7197352954. The cubic root of 230545345 is about 613.1764299796.

The spelling of 230545345 in words is "two hundred thirty million, five hundred forty-five thousand, three hundred forty-five".

Divisors: 1 5 233 1165 197893 989465 46109069 230545345