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242012613 = 380670871
BaseRepresentation
bin11100110110011…
…01000111000101
3121212101111220010
432123031013011
5443423400423
640003100433
75666034063
oct1633150705
9555344803
10242012613
11114678727
1269071719
133b1a6c3b
14241db033
15163a7693
hexe6cd1c5

242012613 has 4 divisors (see below), whose sum is σ = 322683488. Its totient is φ = 161341740.

The previous prime is 242012609. The next prime is 242012621. The reversal of 242012613 is 316210242.

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.

It is not a de Polignac number, because 242012613 - 22 = 242012609 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 242012613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242012653) 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, 40335433 + ... + 40335438.

It is an arithmetic number, because the mean of its divisors is an integer number (80670872).

Almost surely, 2242012613 is an apocalyptic number.

It is an amenable number.

242012613 is a deficient number, since it is larger than the sum of its proper divisors (80670875).

242012613 is an equidigital number, since it uses as much as digits as its factorization.

242012613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80670874.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 242012613 is about 15556.7545779960. The cubic root of 242012613 is about 623.1787947194.

Adding to 242012613 its reverse (316210242), we get a palindrome (558222855).

The spelling of 242012613 in words is "two hundred forty-two million, twelve thousand, six hundred thirteen".

Divisors: 1 3 80670871 242012613