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20060446220 = 2251003022311
BaseRepresentation
bin10010101011101100…
…100001111000001100
31220210001021020212122
4102223230201320030
5312040433234340
613114324552112
71310054656643
oct225354417014
956701236778
1020060446220
118564665181
123a7a252638
131b7907ca29
14d8433c35a
157c620adb5
hex4abb21e0c

20060446220 has 12 divisors (see below), whose sum is σ = 42126937104. Its totient is φ = 8024178480.

The previous prime is 20060446213. The next prime is 20060446229. The reversal of 20060446220 is 2264406002.

It is a self number, because there is not a number n which added to its sum of digits gives 20060446220.

It is not an unprimeable number, because it can be changed into a prime (20060446229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 501511136 + ... + 501511175.

It is an arithmetic number, because the mean of its divisors is an integer number (3510578092).

Almost surely, 220060446220 is an apocalyptic number.

20060446220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20060446220 is an abundant number, since it is smaller than the sum of its proper divisors (22066490884).

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

20060446220 is a wasteful number, since it uses less digits than its factorization.

20060446220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003022320 (or 1003022318 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The spelling of 20060446220 in words is "twenty billion, sixty million, four hundred forty-six thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 1003022311 2006044622 4012089244 5015111555 10030223110 20060446220