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230401221 = 3174517671
BaseRepresentation
bin11011011101110…
…10010011000101
3121001112121001120
431232322103011
5432440314341
634510144153
75465243451
oct1556722305
9531477046
10230401221
11109067936
12651b2059
133896caab
1422857661
1515362066
hexdbba4c5

230401221 has 8 divisors (see below), whose sum is σ = 325272384. Its totient is φ = 144565440.

The previous prime is 230401217. The next prime is 230401231. The reversal of 230401221 is 122104032.

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

It is not a de Polignac number, because 230401221 - 22 = 230401217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 230401221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230401211) 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, 2258785 + ... + 2258886.

It is an arithmetic number, because the mean of its divisors is an integer number (40659048).

Almost surely, 2230401221 is an apocalyptic number.

It is an amenable number.

230401221 is a deficient number, since it is larger than the sum of its proper divisors (94871163).

230401221 is a wasteful number, since it uses less digits than its factorization.

230401221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4517691.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 230401221 is about 15178.9729889739. The cubic root of 230401221 is about 613.0486288572.

Adding to 230401221 its reverse (122104032), we get a palindrome (352505253).

The spelling of 230401221 in words is "two hundred thirty million, four hundred one thousand, two hundred twenty-one".

Divisors: 1 3 17 51 4517671 13553013 76800407 230401221