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3812131 = 17534231
BaseRepresentation
bin1110100010101100100011
321011200021001
432202230203
51433442011
6213412431
744255041
oct16425443
97150231
103812131
112174124
12133a117
13a361cb
14713391
155047c1
hex3a2b23

3812131 has 8 divisors (see below), whose sum is σ = 4113504. Its totient is φ = 3519360.

The previous prime is 3812129. The next prime is 3812153. The reversal of 3812131 is 1312183.

3812131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3812131 - 21 = 3812129 is a prime.

It is a super-2 number, since 2×38121312 = 29064685522322, which contains 22 as substring.

It is a Duffinian number.

3812131 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3812099 and 3812108.

It is not an unprimeable number, because it can be changed into a prime (3812111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1215 + ... + 3016.

It is an arithmetic number, because the mean of its divisors is an integer number (514188).

Almost surely, 23812131 is an apocalyptic number.

3812131 is a deficient number, since it is larger than the sum of its proper divisors (301373).

3812131 is a wasteful number, since it uses less digits than its factorization.

3812131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4301.

The product of its digits is 144, while the sum is 19.

The square root of 3812131 is about 1952.4679254728. The cubic root of 3812131 is about 156.2149540600.

The spelling of 3812131 in words is "three million, eight hundred twelve thousand, one hundred thirty-one".

Divisors: 1 17 53 901 4231 71927 224243 3812131