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242410013 = 1571154303
BaseRepresentation
bin11100111001011…
…10001000011101
3121220010201000122
432130232020131
5444024110023
640015404325
76002310506
oct1634561035
9556121018
10242410013
1111491a25a
12692236a5
133b2b5aa1
14242a1bad
15164352c8
hexe72e21d

242410013 has 4 divisors (see below), whose sum is σ = 242565888. Its totient is φ = 242254140.

The previous prime is 242410009. The next prime is 242410031. The reversal of 242410013 is 310014242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 310014242 = 2155007121.

It is a cyclic number.

It is not a de Polignac number, because 242410013 - 22 = 242410009 is a prime.

It is a super-2 number, since 2×2424100132 = 117525228805320338, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242409973 and 242410000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242410613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75581 + ... + 78722.

It is an arithmetic number, because the mean of its divisors is an integer number (60641472).

Almost surely, 2242410013 is an apocalyptic number.

It is an amenable number.

242410013 is a deficient number, since it is larger than the sum of its proper divisors (155875).

242410013 is a wasteful number, since it uses less digits than its factorization.

242410013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155874.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 242410013 is about 15569.5219258653. The cubic root of 242410013 is about 623.5197078375.

Adding to 242410013 its reverse (310014242), we get a palindrome (552424255).

The spelling of 242410013 in words is "two hundred forty-two million, four hundred ten thousand, thirteen".

Divisors: 1 1571 154303 242410013