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323102032420 = 22519441830981
BaseRepresentation
bin1001011001110100110…
…00011100001000100100
31010212222112110212111111
410230322120130020210
520243203110014140
6404233033514404
732225524650466
oct4547230341044
91125875425444
10323102032420
11115032746182
1252752272a04
132461209368b
14118d13d0136
1586109257ea
hex4b3a61c224

323102032420 has 24 divisors (see below), whose sum is σ = 678549985848. Its totient is φ = 129234009600.

The previous prime is 323102032391. The next prime is 323102032423. The reversal of 323102032420 is 24230201323.

It can be written as a sum of positive squares in 4 ways, for example, as 12282402276 + 310819630144 = 110826^2 + 557512^2 .

It is a junction number, because it is equal to n+sod(n) for n = 323102032391 and 323102032400.

It is not an unprimeable number, because it can be changed into a prime (323102032423) 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, 26671 + ... + 804310.

It is an arithmetic number, because the mean of its divisors is an integer number (28272916077).

Almost surely, 2323102032420 is an apocalyptic number.

It is an amenable number.

323102032420 is an abundant number, since it is smaller than the sum of its proper divisors (355447953428).

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

323102032420 is a wasteful number, since it uses less digits than its factorization.

323102032420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850431 (or 850429 counting only the distinct ones).

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

Adding to 323102032420 its reverse (24230201323), we get a palindrome (347332233743).

The spelling of 323102032420 in words is "three hundred twenty-three billion, one hundred two million, thirty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 19441 38882 77764 97205 194410 388820 830981 1661962 3323924 4154905 8309810 16619620 16155101621 32310203242 64620406484 80775508105 161551016210 323102032420