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323012103220 = 22516150605161
BaseRepresentation
bin1001011001101010000…
…01011000110000110100
31010212202021020222211101
410230311001120300310
520243012044300340
6404220102215444
732223353401312
oct4546501306064
91125667228741
10323012103220
11114a96a03024
1252728124584
13245c9567a31
14118c34a10b2
158607aaec9a
hex4b35058c34

323012103220 has 12 divisors (see below), whose sum is σ = 678325416804. Its totient is φ = 129204841280.

The previous prime is 323012103199. The next prime is 323012103229. The reversal of 323012103220 is 22301210323.

It can be written as a sum of positive squares in 2 ways, for example, as 38167873956 + 284844229264 = 195366^2 + 533708^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323012103229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8075302561 + ... + 8075302600.

It is an arithmetic number, because the mean of its divisors is an integer number (56527118067).

Almost surely, 2323012103220 is an apocalyptic number.

It is an amenable number.

323012103220 is an abundant number, since it is smaller than the sum of its proper divisors (355313313584).

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

323012103220 is a wasteful number, since it uses less digits than its factorization.

323012103220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16150605170 (or 16150605168 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 323012103220 its reverse (22301210323), we get a palindrome (345313313543).

The spelling of 323012103220 in words is "three hundred twenty-three billion, twelve million, one hundred three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 16150605161 32301210322 64602420644 80753025805 161506051610 323012103220