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1024201231 = 8911507879
BaseRepresentation
bin111101000011000…
…001001000001111
32122101012210221221
4331003001020033
54044143414411
6245344104211
734244365264
oct7503011017
92571183857
101024201231
114861535a9
12247005067
13134261941
149a04b26b
155edb2071
hex3d0c120f

1024201231 has 4 divisors (see below), whose sum is σ = 1035709200. Its totient is φ = 1012693264.

The previous prime is 1024201229. The next prime is 1024201253. The reversal of 1024201231 is 1321024201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1321024201 = 7188717743.

It is not a de Polignac number, because 1024201231 - 21 = 1024201229 is a prime.

It is a super-2 number, since 2×10242012312 = 2097976323163830722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1024201271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5753851 + ... + 5754028.

It is an arithmetic number, because the mean of its divisors is an integer number (258927300).

Almost surely, 21024201231 is an apocalyptic number.

1024201231 is a deficient number, since it is larger than the sum of its proper divisors (11507969).

1024201231 is an equidigital number, since it uses as much as digits as its factorization.

1024201231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11507968.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1024201231 is about 32003.1440799181. The cubic root of 1024201231 is about 1008.0028603760.

Adding to 1024201231 its reverse (1321024201), we get a palindrome (2345225432).

The spelling of 1024201231 in words is "one billion, twenty-four million, two hundred one thousand, two hundred thirty-one".

Divisors: 1 89 11507879 1024201231