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2020170940 = 225101008547
BaseRepresentation
bin111100001101001…
…0101110010111100
312012210022022112221
41320122111302330
513114130432230
6532243135124
7101030112124
oct17032256274
95183268487
102020170940
11947374367
124846744a4
132626ba528
14152429c84
15bc54927a
hex78695cbc

2020170940 has 12 divisors (see below), whose sum is σ = 4242359016. Its totient is φ = 808068368.

The previous prime is 2020170923. The next prime is 2020170941. The reversal of 2020170940 is 490710202.

2020170940 is a modest number, since divided by 170940 gives 2020 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020170941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50504254 + ... + 50504293.

It is an arithmetic number, because the mean of its divisors is an integer number (353529918).

Almost surely, 22020170940 is an apocalyptic number.

2020170940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020170940 is an abundant number, since it is smaller than the sum of its proper divisors (2222188076).

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

2020170940 is a wasteful number, since it uses less digits than its factorization.

2020170940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101008556 (or 101008554 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 2020170940 is about 44946.3117507989. The cubic root of 2020170940 is about 1264.1425216838.

The spelling of 2020170940 in words is "two billion, twenty million, one hundred seventy thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 101008547 202017094 404034188 505042735 1010085470 2020170940