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132304431 = 376794033
BaseRepresentation
bin1111110001011…
…00111000101111
3100012221202120010
413320230320233
5232332220211
621043424303
73164366130
oct770547057
9305852503
10132304431
1168756306
1238385093
132154465c
14137ddc87
15b9364a6
hex7e2ce2f

132304431 has 16 divisors (see below), whose sum is σ = 204617984. Its totient is φ = 74473344.

The previous prime is 132304379. The next prime is 132304433. The reversal of 132304431 is 134403231.

It is not a de Polignac number, because 132304431 - 214 = 132288047 is a prime.

It is a super-2 number, since 2×1323044312 = 35008924924467522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 132304398 and 132304407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132304433) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 45610 + ... + 48423.

It is an arithmetic number, because the mean of its divisors is an integer number (12788624).

Almost surely, 2132304431 is an apocalyptic number.

132304431 is a deficient number, since it is larger than the sum of its proper divisors (72313553).

132304431 is an equidigital number, since it uses as much as digits as its factorization.

132304431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94110.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 132304431 is about 11502.3663217618. The cubic root of 132304431 is about 509.5554642335. Note that the first 3 decimals are identical.

Adding to 132304431 its reverse (134403231), we get a palindrome (266707662).

The spelling of 132304431 in words is "one hundred thirty-two million, three hundred four thousand, four hundred thirty-one".

Divisors: 1 3 7 21 67 201 469 1407 94033 282099 658231 1974693 6300211 18900633 44101477 132304431