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3102211213 = 13339232567
BaseRepresentation
bin1011100011100111…
…1111110010001101
322000012100122202121
42320321333302031
522323131224323
61231455052541
7136606234363
oct27071776215
98005318677
103102211213
111352132222
12726b11151
133a592064a
14216011633
15132533a5d
hexb8e7fc8d

3102211213 has 4 divisors (see below), whose sum is σ = 3102457120. Its totient is φ = 3101965308.

The previous prime is 3102211129. The next prime is 3102211219. The reversal of 3102211213 is 3121122013.

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 3102211213 - 217 = 3102080141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3102211219) 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, 102945 + ... + 129622.

It is an arithmetic number, because the mean of its divisors is an integer number (775614280).

Almost surely, 23102211213 is an apocalyptic number.

It is an amenable number.

3102211213 is a deficient number, since it is larger than the sum of its proper divisors (245907).

3102211213 is a wasteful number, since it uses less digits than its factorization.

3102211213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245906.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 3102211213 is about 55697.4973674760. The cubic root of 3102211213 is about 1458.4463382784.

Adding to 3102211213 its reverse (3121122013), we get a palindrome (6223333226).

The spelling of 3102211213 in words is "three billion, one hundred two million, two hundred eleven thousand, two hundred thirteen".

Divisors: 1 13339 232567 3102211213