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491229342 = 232179152461
BaseRepresentation
bin11101010001111…
…001000010011110
31021020100000222100
4131101321002132
52001223314332
6120424425530
715113244342
oct3521710236
91236300870
10491229342
1123231696a
121186182a6
137aa03c66
1449351622
152d1d467c
hex1d47909e

491229342 has 24 divisors (see below), whose sum is σ = 1070283240. Its totient is φ = 162827280.

The previous prime is 491229341. The next prime is 491229371. The reversal of 491229342 is 243922194.

491229342 is a `hidden beast` number, since 4 + 91 + 229 + 342 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 491229297 and 491229306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491229341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73009 + ... + 79452.

It is an arithmetic number, because the mean of its divisors is an integer number (44595135).

Almost surely, 2491229342 is an apocalyptic number.

491229342 is an abundant number, since it is smaller than the sum of its proper divisors (579053898).

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

491229342 is a wasteful number, since it uses less digits than its factorization.

491229342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152648 (or 152645 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 491229342 is about 22163.6942317837. The cubic root of 491229342 is about 789.0322722900.

The spelling of 491229342 in words is "four hundred ninety-one million, two hundred twenty-nine thousand, three hundred forty-two".

Divisors: 1 2 3 6 9 18 179 358 537 1074 1611 3222 152461 304922 457383 914766 1372149 2744298 27290519 54581038 81871557 163743114 245614671 491229342