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230021409 = 3275327851
BaseRepresentation
bin11011011010111…
…01100100100001
3121000211022001110
431231131210201
5432341141114
634454053533
75462102232
oct1555354441
9530738043
10230021409
11108928542
126504a2a9
1338868c57
1422799089
15152d9759
hexdb5d921

230021409 has 8 divisors (see below), whose sum is σ = 306817632. Its totient is φ = 153286400.

The previous prime is 230021401. The next prime is 230021411. The reversal of 230021409 is 904120032.

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 230021409 - 23 = 230021401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (230021401) 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, 5667 + ... + 22184.

It is an arithmetic number, because the mean of its divisors is an integer number (38352204).

Almost surely, 2230021409 is an apocalyptic number.

It is an amenable number.

230021409 is a deficient number, since it is larger than the sum of its proper divisors (76796223).

230021409 is a wasteful number, since it uses less digits than its factorization.

230021409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30607.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 230021409 is about 15166.4567055064. The cubic root of 230021409 is about 612.7115772739.

The spelling of 230021409 in words is "two hundred thirty million, twenty-one thousand, four hundred nine".

Divisors: 1 3 2753 8259 27851 83553 76673803 230021409