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3211045340 = 225179444251
BaseRepresentation
bin1011111101100100…
…1010100111011100
322021210011000010012
42333121022213130
523034011422330
61250343502352
7142400302136
oct27731124734
98253130105
103211045340
1113a8607988
127574579b8
133c2338139
14226662056
1513bd80c95
hexbf64a9dc

3211045340 has 24 divisors (see below), whose sum is σ = 7139854512. Its totient is φ = 1208864000.

The previous prime is 3211045309. The next prime is 3211045349. The reversal of 3211045340 is 435401123.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3211045349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4721786 + ... + 4722465.

It is an arithmetic number, because the mean of its divisors is an integer number (297493938).

Almost surely, 23211045340 is an apocalyptic number.

It is an amenable number.

3211045340 is an abundant number, since it is smaller than the sum of its proper divisors (3928809172).

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

3211045340 is a wasteful number, since it uses less digits than its factorization.

3211045340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9444277 (or 9444275 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 3211045340 is about 56666.0863303617. The cubic root of 3211045340 is about 1475.3061266363.

Adding to 3211045340 its reverse (435401123), we get a palindrome (3646446463).

The spelling of 3211045340 in words is "three billion, two hundred eleven million, forty-five thousand, three hundred forty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 9444251 18888502 37777004 47221255 94442510 160552267 188885020 321104534 642209068 802761335 1605522670 3211045340