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20017602260 = 22571106913187
BaseRepresentation
bin10010101001001001…
…000101111011010100
31220200001122120000022
4102221021011323110
5311444001233020
613110154404312
71306024545305
oct225111057324
956601576008
1020017602260
118542461947
123a67a30698
131b7022b886
14d7c7887ac
157c2596625
hex4a9245ed4

20017602260 has 48 divisors (see below), whose sum is σ = 42672147840. Its totient is φ = 7886282880.

The previous prime is 20017602203. The next prime is 20017602281. The reversal of 20017602260 is 6220671002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1511387 + ... + 1524573.

It is an arithmetic number, because the mean of its divisors is an integer number (889003080).

Almost surely, 220017602260 is an apocalyptic number.

20017602260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20017602260 is an abundant number, since it is smaller than the sum of its proper divisors (22654545580).

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

20017602260 is a wasteful number, since it uses less digits than its factorization.

20017602260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14336 (or 14334 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The spelling of 20017602260 in words is "twenty billion, seventeen million, six hundred two thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 71 142 284 355 710 1069 1420 2138 4276 5345 10690 13187 21380 26374 52748 65935 75899 131870 151798 263740 303596 379495 758990 936277 1517980 1872554 3745108 4681385 9362770 14096903 18725540 28193806 56387612 70484515 140969030 281938060 1000880113 2001760226 4003520452 5004400565 10008801130 20017602260