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132431022 = 23222873217
BaseRepresentation
bin1111110010010…
…11110010101110
3100020012012012200
413321023302232
5232400243042
621050242330
73165434163
oct771136256
9306165180
10132431022
1168832429
12384263a6
132158a169
141383406a
15b95dc4c
hex7e4bcae

132431022 has 24 divisors (see below), whose sum is σ = 287148576. Its totient is φ = 44110656.

The previous prime is 132430993. The next prime is 132431041. The reversal of 132431022 is 220134231.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 132430986 and 132431004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39558 + ... + 42774.

It is an arithmetic number, because the mean of its divisors is an integer number (11964524).

Almost surely, 2132431022 is an apocalyptic number.

132431022 is an abundant number, since it is smaller than the sum of its proper divisors (154717554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

132431022 is a wasteful number, since it uses less digits than its factorization.

132431022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5512 (or 5509 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 132431022 is about 11507.8678303150. The cubic root of 132431022 is about 509.7179293730.

Adding to 132431022 its reverse (220134231), we get a palindrome (352565253).

The spelling of 132431022 in words is "one hundred thirty-two million, four hundred thirty-one thousand, twenty-two".

Divisors: 1 2 3 6 9 18 2287 3217 4574 6434 6861 9651 13722 19302 20583 28953 41166 57906 7357279 14714558 22071837 44143674 66215511 132431022