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3921144213 = 372331261881
BaseRepresentation
bin1110100110110111…
…1110100110010101
3101010021022202122110
43221231332212111
531012303103323
61445031421233
7166112114220
oct35155764625
911107282573
103921144213
111732424758
12915224819
134a64a209c
14292aa85b7
1517e39a793
hexe9b7e995

3921144213 has 32 divisors (see below), whose sum is σ = 6436012032. Its totient is φ = 2074089600.

The previous prime is 3921144211. The next prime is 3921144217. The reversal of 3921144213 is 3124411293.

3921144213 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3921144213 - 21 = 3921144211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3921144211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115968 + ... + 145913.

It is an arithmetic number, because the mean of its divisors is an integer number (201125376).

Almost surely, 23921144213 is an apocalyptic number.

It is an amenable number.

3921144213 is a deficient number, since it is larger than the sum of its proper divisors (2514867819).

3921144213 is a wasteful number, since it uses less digits than its factorization.

3921144213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261945.

The product of its digits is 5184, while the sum is 30.

The square root of 3921144213 is about 62619.0403391812. The cubic root of 3921144213 is about 1576.9004304904.

The spelling of 3921144213 in words is "three billion, nine hundred twenty-one million, one hundred forty-four thousand, two hundred thirteen".

Divisors: 1 3 7 21 23 31 69 93 161 217 483 651 713 2139 4991 14973 261881 785643 1833167 5499501 6023263 8118311 18069789 24354933 42162841 56828177 126488523 170484531 186721153 560163459 1307048071 3921144213