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420707302 = 21108718973
BaseRepresentation
bin11001000100110…
…111101111100110
31002022122010220221
4121010313233212
51330200113202
6105425114554
713265644621
oct3104675746
91068563827
10420707302
111a6529694
12b8a88a5a
1369211942
143dc34db8
1526e04037
hex19137be6

420707302 has 8 divisors (see below), whose sum is σ = 631151136. Its totient is φ = 210323592.

The previous prime is 420707281. The next prime is 420707317. The reversal of 420707302 is 203707024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×4207073022 = 353989267912238408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 12688 + ... + 31660.

It is an arithmetic number, because the mean of its divisors is an integer number (78893892).

Almost surely, 2420707302 is an apocalyptic number.

420707302 is a deficient number, since it is larger than the sum of its proper divisors (210443834).

420707302 is a wasteful number, since it uses less digits than its factorization.

420707302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30062.

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 420707302 is about 20511.1506746940. The cubic root of 420707302 is about 749.3073914028.

The spelling of 420707302 in words is "four hundred twenty million, seven hundred seven thousand, three hundred two".

Divisors: 1 2 11087 18973 22174 37946 210353651 420707302