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420341355 = 32573113241
BaseRepresentation
bin11001000011011…
…110011001101011
31002021221112221100
4121003132121223
51330101410410
6105413212443
713262562000
oct3103363153
91067845840
10420341355
111a62a9755
12b8931123
13691141c5
143db7b8a7
1526d808c0
hex190de66b

420341355 has 96 divisors (see below), whose sum is σ = 860745600. Its totient is φ = 189665280.

The previous prime is 420341347. The next prime is 420341359. The reversal of 420341355 is 553143024.

It is not a de Polignac number, because 420341355 - 23 = 420341347 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (420341359) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1744035 + ... + 1744275.

It is an arithmetic number, because the mean of its divisors is an integer number (8966100).

Almost surely, 2420341355 is an apocalyptic number.

420341355 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

420341355 is an abundant number, since it is smaller than the sum of its proper divisors (440404245).

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

420341355 is a wasteful number, since it uses less digits than its factorization.

420341355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386 (or 369 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 420341355 is about 20502.2280496535. The cubic root of 420341355 is about 749.0900698159.

Adding to 420341355 its reverse (553143024), we get a palindrome (973484379).

The spelling of 420341355 in words is "four hundred twenty million, three hundred forty-one thousand, three hundred fifty-five".

Divisors: 1 3 5 7 9 15 21 35 45 49 63 105 113 147 241 245 315 339 343 441 565 723 735 791 1017 1029 1205 1687 1695 1715 2169 2205 2373 3087 3615 3955 5061 5085 5145 5537 7119 8435 10845 11809 11865 15183 15435 16611 25305 27233 27685 35427 35595 38759 49833 59045 75915 81699 82663 83055 106281 116277 136165 177135 190631 193795 245097 247989 249165 348831 408495 413315 531405 571893 581385 743967 953155 1225485 1239945 1334417 1715679 1744155 2859465 3719835 4003251 6672085 8578395 9340919 12009753 20016255 28022757 46704595 60048765 84068271 140113785 420341355