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302312230420 = 2251732505049
BaseRepresentation
bin1000110011000110011…
…01101000111000010100
31001220022122210111120211
410121203031220320110
514423113412333140
6350514052135204
730561402363034
oct4314315507024
91056278714524
10302312230420
11107234411232
124a70b907504
132267ab968a5
14108bc2758c4
157ce56992ea
hex4663368e14

302312230420 has 36 divisors (see below), whose sum is σ = 638547846300. Its totient is φ = 120225666304.

The previous prime is 302312230403. The next prime is 302312230439. The reversal of 302312230420 is 24032213203.

It can be written as a sum of positive squares in 6 ways, for example, as 31167077764 + 271145152656 = 176542^2 + 520716^2 .

It is a junction number, because it is equal to n+sod(n) for n = 302312230391 and 302312230400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 346056 + ... + 851104.

It is an arithmetic number, because the mean of its divisors is an integer number (17737440175).

Almost surely, 2302312230420 is an apocalyptic number.

It is an amenable number.

302312230420 is an abundant number, since it is smaller than the sum of its proper divisors (336235615880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

302312230420 is a wasteful number, since it uses less digits than its factorization.

302312230420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505404 (or 505229 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 302312230420 its reverse (24032213203), we get a palindrome (326344443623).

The spelling of 302312230420 in words is "three hundred two billion, three hundred twelve million, two hundred thirty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 173 346 692 865 1730 3460 29929 59858 119716 149645 299290 505049 598580 1010098 2020196 2525245 5050490 10100980 87373477 174746954 349493908 436867385 873734770 1747469540 15115611521 30231223042 60462446084 75578057605 151156115210 302312230420