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423332203220 = 225291574648937
BaseRepresentation
bin1100010100100001001…
…00001100101011010100
31111110200202020002201122
412022100210030223110
523413441021000340
6522250502143112
742404365233053
oct6122044145324
91443622202648
10423332203220
11153596aa0a83
126a065121a98
1330bc6492054
14166bcc4839a
15b029e78db5
hex629090cad4

423332203220 has 48 divisors (see below), whose sum is σ = 925510577040. Its totient is φ = 162452419584.

The previous prime is 423332203211. The next prime is 423332203223. The reversal of 423332203220 is 22302233324.

It can be written as a sum of positive squares in 8 ways, for example, as 95211742096 + 328120461124 = 308564^2 + 572818^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 423332203220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423332203223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2233409 + ... + 2415528.

It is an arithmetic number, because the mean of its divisors is an integer number (19281470355).

Almost surely, 2423332203220 is an apocalyptic number.

It is an amenable number.

423332203220 is an abundant number, since it is smaller than the sum of its proper divisors (502178373820).

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

423332203220 is a wasteful number, since it uses less digits than its factorization.

423332203220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4649132 (or 4649130 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 26.

Adding to 423332203220 its reverse (22302233324), we get a palindrome (445634436544).

The spelling of 423332203220 in words is "four hundred twenty-three billion, three hundred thirty-two million, two hundred three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 29 58 116 145 157 290 314 580 628 785 1570 3140 4553 9106 18212 22765 45530 91060 4648937 9297874 18595748 23244685 46489370 92978740 134819173 269638346 539276692 674095865 729883109 1348191730 1459766218 2696383460 2919532436 3649415545 7298831090 14597662180 21166610161 42333220322 84666440644 105833050805 211666101610 423332203220