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230145150431 = 732877878633
BaseRepresentation
bin1101011001010110111…
…0000100110111011111
3211000001012200222211102
43112111232010313133
512232314124303211
6253421025143315
722425132333650
oct3262556046737
9730035628742
10230145150431
1189670a34969
123872b18ab3b
13189197a59b1
14b1d3911527
155ebebc0a3b
hex3595b84ddf

230145150431 has 4 divisors (see below), whose sum is σ = 263023029072. Its totient is φ = 197267271792.

The previous prime is 230145150427. The next prime is 230145150451. The reversal of 230145150431 is 134051541032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 230145150431 - 22 = 230145150427 is a prime.

It is a super-2 number, since 2×2301451504312 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230145150394 and 230145150403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230145150421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16438939310 + ... + 16438939323.

It is an arithmetic number, because the mean of its divisors is an integer number (65755757268).

Almost surely, 2230145150431 is an apocalyptic number.

230145150431 is a deficient number, since it is larger than the sum of its proper divisors (32877878641).

230145150431 is an equidigital number, since it uses as much as digits as its factorization.

230145150431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32877878640.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 230145150431 its reverse (134051541032), we get a palindrome (364196691463).

The spelling of 230145150431 in words is "two hundred thirty billion, one hundred forty-five million, one hundred fifty thousand, four hundred thirty-one".

Divisors: 1 7 32877878633 230145150431