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230451533 = 13971271439
BaseRepresentation
bin11011011110001…
…10100101001101
3121001122011001222
431233012211031
5432443422113
634511213125
75465543234
oct1557064515
9531564058
10230451533
111090a1714
12652171a5
1338989970
142286bb1b
1515371e08
hexdbc694d

230451533 has 16 divisors (see below), whose sum is σ = 252887040. Its totient is φ = 208728576.

The previous prime is 230451511. The next prime is 230451539. The reversal of 230451533 is 335154032.

It is a cyclic number.

It is not a de Polignac number, because 230451533 - 224 = 213674317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230451539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159428 + ... + 160866.

It is an arithmetic number, because the mean of its divisors is an integer number (15805440).

Almost surely, 2230451533 is an apocalyptic number.

It is an amenable number.

230451533 is a deficient number, since it is larger than the sum of its proper divisors (22435507).

230451533 is a wasteful number, since it uses less digits than its factorization.

230451533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 230451533 is about 15180.6301911350. The cubic root of 230451533 is about 613.0932487853.

The spelling of 230451533 in words is "two hundred thirty million, four hundred fifty-one thousand, five hundred thirty-three".

Divisors: 1 13 97 127 1261 1439 1651 12319 18707 139583 160147 182753 1814579 2375789 17727041 230451533