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230512537 = 1741330721
BaseRepresentation
bin11011011110101…
…01011110011001
3121001202020202101
431233111132121
5433002400122
634512403401
75466216133
oct1557253631
9531666671
10230512537
11109133532
1265246561
13389ab668
1422886053
1515385027
hexdbd5799

230512537 has 8 divisors (see below), whose sum is σ = 250025832. Its totient is φ = 211660800.

The previous prime is 230512531. The next prime is 230512567. The reversal of 230512537 is 735215032.

It can be written as a sum of positive squares in 4 ways, for example, as 808201 + 229704336 = 899^2 + 15156^2 .

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 230512537 - 27 = 230512409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230512531) 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, 164664 + ... + 166057.

It is an arithmetic number, because the mean of its divisors is an integer number (31253229).

Almost surely, 2230512537 is an apocalyptic number.

It is an amenable number.

230512537 is a deficient number, since it is larger than the sum of its proper divisors (19513295).

230512537 is a wasteful number, since it uses less digits than its factorization.

230512537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330779.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 230512537 is about 15182.6393291812. The cubic root of 230512537 is about 613.1473423589.

Adding to 230512537 its reverse (735215032), we get a palindrome (965727569).

The spelling of 230512537 in words is "two hundred thirty million, five hundred twelve thousand, five hundred thirty-seven".

Divisors: 1 17 41 697 330721 5622257 13559561 230512537