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3212101309 = 16319706143
BaseRepresentation
bin1011111101110100…
…1100011010111101
322021212010122122011
42333131030122331
523034244220214
61250422251221
7142412260564
oct27735143275
98255118564
103212101309
1113a916928a
12757886b11
133c2617981
14226858bdb
1513beddac4
hexbf74c6bd

3212101309 has 4 divisors (see below), whose sum is σ = 3231807616. Its totient is φ = 3192395004.

The previous prime is 3212101303. The next prime is 3212101357. The reversal of 3212101309 is 9031012123.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3212101309 - 227 = 3077883581 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3212101309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3212101303) 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, 9852909 + ... + 9853234.

It is an arithmetic number, because the mean of its divisors is an integer number (807951904).

Almost surely, 23212101309 is an apocalyptic number.

It is an amenable number.

3212101309 is a deficient number, since it is larger than the sum of its proper divisors (19706307).

3212101309 is a wasteful number, since it uses less digits than its factorization.

3212101309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19706306.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 3212101309 is about 56675.4030334148. The cubic root of 3212101309 is about 1475.4678296155.

The spelling of 3212101309 in words is "three billion, two hundred twelve million, one hundred one thousand, three hundred nine".

Divisors: 1 163 19706143 3212101309