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3211302020 = 225160565101
BaseRepresentation
bin1011111101101000…
…1001010010000100
322021210122001012212
42333122021102010
523034043131040
61250353202552
7142402421363
oct27732112204
98253561185
103211302020
1113a8772813
12757560458
133c23c7c14
142266cb7da
1513bdd1d65
hexbf689484

3211302020 has 12 divisors (see below), whose sum is σ = 6743734284. Its totient is φ = 1284520800.

The previous prime is 3211302019. The next prime is 3211302041. The reversal of 3211302020 is 202031123.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 874739776 + 2336562244 = 29576^2 + 48338^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3211301986 and 3211302004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80282531 + ... + 80282570.

It is an arithmetic number, because the mean of its divisors is an integer number (561977857).

Almost surely, 23211302020 is an apocalyptic number.

It is an amenable number.

3211302020 is an abundant number, since it is smaller than the sum of its proper divisors (3532432264).

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

3211302020 is a wasteful number, since it uses less digits than its factorization.

3211302020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160565110 (or 160565108 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 3211302020 is about 56668.3511318267. The cubic root of 3211302020 is about 1475.3454359002.

Adding to 3211302020 its reverse (202031123), we get a palindrome (3413333143).

The spelling of 3211302020 in words is "three billion, two hundred eleven million, three hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 160565101 321130202 642260404 802825505 1605651010 3211302020