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420980888 = 2379666109
BaseRepresentation
bin11001000101111…
…010100010011000
31002100011001012202
4121011322202120
51330232342023
6105435025332
713301164346
oct3105724230
91070131182
10420980888
111a66a6199
12b8b9b248
13692a9323
143dca6996
1526e5a128
hex1917a898

420980888 has 16 divisors (see below), whose sum is σ = 799332000. Its totient is φ = 207825696.

The previous prime is 420980887. The next prime is 420980921. The reversal of 420980888 is 888089024.

It is a super-2 number, since 2×4209808882 = 354449816122537088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420980887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332423 + ... + 333686.

It is an arithmetic number, because the mean of its divisors is an integer number (49958250).

Almost surely, 2420980888 is an apocalyptic number.

It is an amenable number.

420980888 is a deficient number, since it is larger than the sum of its proper divisors (378351112).

420980888 is a wasteful number, since it uses less digits than its factorization.

420980888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666194 (or 666190 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 47.

The square root of 420980888 is about 20517.8187924545. The cubic root of 420980888 is about 749.4697810974.

The spelling of 420980888 in words is "four hundred twenty million, nine hundred eighty thousand, eight hundred eighty-eight".

Divisors: 1 2 4 8 79 158 316 632 666109 1332218 2664436 5328872 52622611 105245222 210490444 420980888