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230536021 = 2414392179
BaseRepresentation
bin11011011110110…
…11001101010101
3121001210102222011
431233123031111
5433004123041
634513104221
75466344452
oct1557331525
9531712864
10230536021
1110914a141
1265258071
13389b9261
1422890829
151538be81
hexdbdb355

230536021 has 8 divisors (see below), whose sum is σ = 232126400. Its totient is φ = 228951360.

The previous prime is 230536003. The next prime is 230536049. The reversal of 230536021 is 120635032.

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 230536021 - 217 = 230404949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230535983 and 230536001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230536001) 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, 104710 + ... + 106888.

It is an arithmetic number, because the mean of its divisors is an integer number (29015800).

Almost surely, 2230536021 is an apocalyptic number.

It is an amenable number.

230536021 is a deficient number, since it is larger than the sum of its proper divisors (1590379).

230536021 is a wasteful number, since it uses less digits than its factorization.

230536021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2859.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 230536021 is about 15183.4126928039. The cubic root of 230536021 is about 613.1681635882.

The spelling of 230536021 in words is "two hundred thirty million, five hundred thirty-six thousand, twenty-one".

Divisors: 1 241 439 2179 105799 525139 956581 230536021