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132144231 = 3157280561
BaseRepresentation
bin1111110000001…
…01110001100111
3100012122121210210
413320011301213
5232312103411
621040150503
73163131102
oct770056147
9305577723
10132144231
1168656a0a
1238308433
13214b976b
141379b739
15b903ca6
hex7e05c67

132144231 has 8 divisors (see below), whose sum is σ = 177315184. Its totient is φ = 87534720.

The previous prime is 132144209. The next prime is 132144253. The reversal of 132144231 is 132441231.

It is an interprime number because it is at equal distance from previous prime (132144209) and next prime (132144253).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 132144231 - 223 = 123755623 is a prime.

It is a super-2 number, since 2×1321442312 = 34924195573162722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 132144198 and 132144207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132144431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139810 + ... + 140751.

It is an arithmetic number, because the mean of its divisors is an integer number (22164398).

Almost surely, 2132144231 is an apocalyptic number.

132144231 is a deficient number, since it is larger than the sum of its proper divisors (45170953).

132144231 is a wasteful number, since it uses less digits than its factorization.

132144231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280721.

The product of its digits is 576, while the sum is 21.

The square root of 132144231 is about 11495.4004279973. The cubic root of 132144231 is about 509.3497171437.

Adding to 132144231 its reverse (132441231), we get a palindrome (264585462).

The spelling of 132144231 in words is "one hundred thirty-two million, one hundred forty-four thousand, two hundred thirty-one".

Divisors: 1 3 157 471 280561 841683 44048077 132144231