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3102301221 = 37317381883
BaseRepresentation
bin1011100011101001…
…0101110000100101
322000012112020020020
42320322111300211
522323142114341
61231501025353
7136610060655
oct27072256045
98005466206
103102301221
111352193908
12726b55259
133a59525c6
14216036365
15132550566
hexb8e95c25

3102301221 has 16 divisors (see below), whose sum is σ = 4217353536. Its totient is φ = 2028053376.

The previous prime is 3102301207. The next prime is 3102301229. The reversal of 3102301221 is 1221032013.

3102301221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3102301221 - 27 = 3102301093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3102301221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3102301229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3055 + ... + 78828.

It is an arithmetic number, because the mean of its divisors is an integer number (263584596).

Almost surely, 23102301221 is an apocalyptic number.

It is an amenable number.

3102301221 is a deficient number, since it is larger than the sum of its proper divisors (1115052315).

3102301221 is a wasteful number, since it uses less digits than its factorization.

3102301221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82132.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 3102301221 is about 55698.3053691941. The cubic root of 3102301221 is about 1458.4604433322.

Adding to 3102301221 its reverse (1221032013), we get a palindrome (4323333234).

The spelling of 3102301221 in words is "three billion, one hundred two million, three hundred one thousand, two hundred twenty-one".

Divisors: 1 3 73 173 219 519 12629 37887 81883 245649 5977459 14165759 17932377 42497277 1034100407 3102301221