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3212102101 = 13247084777
BaseRepresentation
bin1011111101110100…
…1100100111010101
322021212010200201111
42333131030213111
523034244231401
61250422255021
7142412263105
oct27735144725
98255120644
103212102101
1113a916993a
12757887471
133c2618140
14226859205
1513bedde51
hexbf74c9d5

3212102101 has 4 divisors (see below), whose sum is σ = 3459186892. Its totient is φ = 2965017312.

The previous prime is 3212102051. The next prime is 3212102129. The reversal of 3212102101 is 1012012123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1012012123 = 3727351679.

It can be written as a sum of positive squares in 2 ways, for example, as 546858225 + 2665243876 = 23385^2 + 51626^2 .

It is a cyclic number.

It is not a de Polignac number, because 3212102101 - 213 = 3212093909 is a prime.

It is a super-2 number, since 2×32121021012 = 20635199814497228402, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 247084777 = 3212102101 / (3 + 2 + 1 + 2 + 1 + 0 + 2 + 1 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3212102501) 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, 123542376 + ... + 123542401.

It is an arithmetic number, because the mean of its divisors is an integer number (864796723).

Almost surely, 23212102101 is an apocalyptic number.

It is an amenable number.

3212102101 is a deficient number, since it is larger than the sum of its proper divisors (247084791).

3212102101 is a wasteful number, since it uses less digits than its factorization.

3212102101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247084790.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 3212102101 is about 56675.4100205724. The cubic root of 3212102101 is about 1475.4679508830.

Adding to 3212102101 its reverse (1012012123), we get a palindrome (4224114224).

The spelling of 3212102101 in words is "three billion, two hundred twelve million, one hundred two thousand, one hundred one".

Divisors: 1 13 247084777 3212102101