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249415041 = 31747104053
BaseRepresentation
bin11101101110111…
…00010110000001
3122101022121010010
432313130112001
51002322240131
640425455133
76115664361
oct1667342601
9571277103
10249415041
11118874237
126b6414a9
133c899385
14251a69a1
1516d6ab46
hexeddc581

249415041 has 16 divisors (see below), whose sum is σ = 359610624. Its totient is φ = 153164544.

The previous prime is 249415021. The next prime is 249415079. The reversal of 249415041 is 140514942.

It is not a de Polignac number, because 249415041 - 25 = 249415009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (249415021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49630 + ... + 54423.

It is an arithmetic number, because the mean of its divisors is an integer number (22475664).

Almost surely, 2249415041 is an apocalyptic number.

It is an amenable number.

249415041 is a deficient number, since it is larger than the sum of its proper divisors (110195583).

249415041 is a wasteful number, since it uses less digits than its factorization.

249415041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104120.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 249415041 is about 15792.8794397982. The cubic root of 249415041 is about 629.4688064626.

Adding to 249415041 its reverse (140514942), we get a palindrome (389929983).

The spelling of 249415041 in words is "two hundred forty-nine million, four hundred fifteen thousand, forty-one".

Divisors: 1 3 17 47 51 141 799 2397 104053 312159 1768901 4890491 5306703 14671473 83138347 249415041