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20014163420 = 2251618361837
BaseRepresentation
bin10010101000111011…
…111110010111011100
31220122211011211210212
4102220323332113130
5311442111212140
613105552551552
71305653403446
oct225073762734
956584154725
1020014163420
118540523229
123a668525b8
131b6c5c6564
14d7c131496
157c2117765
hex4a8efe5dc

20014163420 has 24 divisors (see below), whose sum is σ = 42033020064. Its totient is φ = 8005041216.

The previous prime is 20014163413. The next prime is 20014163447. The reversal of 20014163420 is 2436141002.

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, 292742 + ... + 354578.

It is an arithmetic number, because the mean of its divisors is an integer number (1751375836).

Almost surely, 220014163420 is an apocalyptic number.

20014163420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20014163420 is an abundant number, since it is smaller than the sum of its proper divisors (22018856644).

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

20014163420 is a wasteful number, since it uses less digits than its factorization.

20014163420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78029 (or 78027 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The spelling of 20014163420 in words is "twenty billion, fourteen million, one hundred sixty-three thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 16183 32366 61837 64732 80915 123674 161830 247348 309185 323660 618370 1236740 1000708171 2001416342 4002832684 5003540855 10007081710 20014163420