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420614886 = 23611149221
BaseRepresentation
bin11001000100100…
…001001011100110
31002022110110011010
4121010201023212
51330134134021
6105423123050
713265111316
oct3104411346
91068413133
10420614886
111a647620a
12b8a43486
13691ab863
143dc0d446
1526dd6976
hex191212e6

420614886 has 16 divisors (see below), whose sum is σ = 855021168. Its totient is φ = 137906400.

The previous prime is 420614861. The next prime is 420614899. The reversal of 420614886 is 688416024.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 574245 + ... + 574976.

It is an arithmetic number, because the mean of its divisors is an integer number (53438823).

Almost surely, 2420614886 is an apocalyptic number.

420614886 is an abundant number, since it is smaller than the sum of its proper divisors (434406282).

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

420614886 is a wasteful number, since it uses less digits than its factorization.

420614886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149287.

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 420614886 is about 20508.8977275718. The cubic root of 420614886 is about 749.2525210589.

The spelling of 420614886 in words is "four hundred twenty million, six hundred fourteen thousand, eight hundred eighty-six".

Divisors: 1 2 3 6 61 122 183 366 1149221 2298442 3447663 6895326 70102481 140204962 210307443 420614886