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420031302420 = 2235231312323439
BaseRepresentation
bin1100001110010111101…
…00010000101100010100
31111011011200222222002110
412013023310100230110
523340211003134140
6520543144311020
742226524106422
oct6071364205424
91434150888073
10420031302420
111521527a1394
12694a3772470
13307bb655a02
14164886b6112
15add5299380
hex61cbd10b14

420031302420 has 96 divisors (see below), whose sum is σ = 1236590530560. Its totient is φ = 106320522880.

The previous prime is 420031302419. The next prime is 420031302421. The reversal of 420031302420 is 24203130024.

It is an interprime number because it is at equal distance from previous prime (420031302419) and next prime (420031302421).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420031302421) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 980940 + ... + 1342499.

It is an arithmetic number, because the mean of its divisors is an integer number (12881151360).

Almost surely, 2420031302420 is an apocalyptic number.

It is an amenable number.

420031302420 is an abundant number, since it is smaller than the sum of its proper divisors (816559228140).

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

420031302420 is a wasteful number, since it uses less digits than its factorization.

420031302420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2323605 (or 2323603 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 420031302420 its reverse (24203130024), we get a palindrome (444234432444).

The spelling of 420031302420 in words is "four hundred twenty billion, thirty-one million, three hundred two thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 23 30 46 60 69 92 115 131 138 230 262 276 345 393 460 524 655 690 786 1310 1380 1572 1965 2620 3013 3930 6026 7860 9039 12052 15065 18078 30130 36156 45195 60260 90390 180780 2323439 4646878 6970317 9293756 11617195 13940634 23234390 27881268 34851585 46468780 53439097 69703170 106878194 139406340 160317291 213756388 267195485 304370509 320634582 534390970 608741018 641269164 801586455 913111527 1068781940 1217482036 1521852545 1603172910 1826223054 3043705090 3206345820 3652446108 4565557635 6087410180 7000521707 9131115270 14001043414 18262230540 21001565121 28002086828 35002608535 42003130242 70005217070 84006260484 105007825605 140010434140 210015651210 420031302420