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242029913 = 3719333893
BaseRepresentation
bin11100110110100…
…01010101011001
3121212102101121212
432123101111121
5443424424123
640003312505
75666135366
oct1633212531
9555371555
10242029913
1111468a724
126907b735
133b1b1a88
142420346d
15163ac878
hexe6d1559

242029913 has 8 divisors (see below), whose sum is σ = 249866568. Its totient is φ = 234261504.

The previous prime is 242029891. The next prime is 242029937. The reversal of 242029913 is 319920242.

It can be written as a sum of positive squares in 4 ways, for example, as 81577024 + 160452889 = 9032^2 + 12667^2 .

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

It is not a de Polignac number, because 242029913 - 26 = 242029849 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242029913.

It is not an unprimeable number, because it can be changed into a prime (242029313) 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, 9806 + ... + 24087.

It is an arithmetic number, because the mean of its divisors is an integer number (31233321).

Almost surely, 2242029913 is an apocalyptic number.

It is an amenable number.

242029913 is a deficient number, since it is larger than the sum of its proper divisors (7836655).

242029913 is a wasteful number, since it uses less digits than its factorization.

242029913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34123.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 242029913 is about 15557.3105966295. The cubic root of 242029913 is about 623.1936434445.

The spelling of 242029913 in words is "two hundred forty-two million, twenty-nine thousand, nine hundred thirteen".

Divisors: 1 37 193 7141 33893 1254041 6541349 242029913