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249675013 = 761584719
BaseRepresentation
bin11101110000110…
…11110100000101
3122101210210201201
432320123310011
51002404100023
640435222501
76121126330
oct1670336405
9571723651
10249675013
11118a31595
126b747a31
133c95a7c3
1425233617
1516dbcbad
hexee1bd05

249675013 has 8 divisors (see below), whose sum is σ = 290021120. Its totient is φ = 210498480.

The previous prime is 249675011. The next prime is 249675017. The reversal of 249675013 is 310576942.

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

It is a cyclic number.

It is not a de Polignac number, because 249675013 - 21 = 249675011 is a prime.

It is a super-2 number, since 2×2496750132 = 124675224233100338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249675011) 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, 291933 + ... + 292786.

It is an arithmetic number, because the mean of its divisors is an integer number (36252640).

Almost surely, 2249675013 is an apocalyptic number.

It is an amenable number.

249675013 is a deficient number, since it is larger than the sum of its proper divisors (40346107).

249675013 is an equidigital number, since it uses as much as digits as its factorization.

249675013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584787.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 249675013 is about 15801.1079674813. The cubic root of 249675013 is about 629.6874346040.

The spelling of 249675013 in words is "two hundred forty-nine million, six hundred seventy-five thousand, thirteen".

Divisors: 1 7 61 427 584719 4093033 35667859 249675013