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3100012221 = 32693841403
BaseRepresentation
bin1011100011000110…
…0110111010111101
322000001012221022110
42320301212322331
522322100342341
61231340004233
7136551445335
oct27061467275
98001187273
103100012221
111350970079
12726230679
133a5330777
142159dc0c5
1513224c216
hexb8c66ebd

3100012221 has 8 divisors (see below), whose sum is σ = 4148716320. Its totient is φ = 2058991472.

The previous prime is 3100012177. The next prime is 3100012259. The reversal of 3100012221 is 1222100013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3100012221 - 27 = 3100012093 is a prime.

It is a super-2 number, since 2×31000122212 = 19220151540698705682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3100012197 and 3100012206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3100012261) 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, 1919895 + ... + 1921508.

It is an arithmetic number, because the mean of its divisors is an integer number (518589540).

Almost surely, 23100012221 is an apocalyptic number.

It is an amenable number.

3100012221 is a deficient number, since it is larger than the sum of its proper divisors (1048704099).

3100012221 is a wasteful number, since it uses less digits than its factorization.

3100012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3841675.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 3100012221 is about 55677.7533760119. The cubic root of 3100012221 is about 1458.1016518927.

Adding to 3100012221 its reverse (1222100013), we get a palindrome (4322112234).

The spelling of 3100012221 in words is "three billion, one hundred million, twelve thousand, two hundred twenty-one".

Divisors: 1 3 269 807 3841403 11524209 1033337407 3100012221