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242341397 = 491493567
BaseRepresentation
bin11100111000111…
…01011000010101
3121220000012220022
432130131120111
5444014411042
640014114525
76001603454
oct1634353025
9556005808
10242341397
11114882751
12691aba45
133b29079c
1424284b9b
151641ecd2
hexe71d615

242341397 has 4 divisors (see below), whose sum is σ = 242835456. Its totient is φ = 241847340.

The previous prime is 242341369. The next prime is 242341433. The reversal of 242341397 is 793143242.

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: 793143242 = 2396571621.

It is a cyclic number.

It is not a de Polignac number, because 242341397 - 216 = 242275861 is a prime.

It is a super-3 number, since 3×2423413973 (a number of 26 digits) contains 333 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 (242341097) 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, 246293 + ... + 247274.

It is an arithmetic number, because the mean of its divisors is an integer number (60708864).

Almost surely, 2242341397 is an apocalyptic number.

It is an amenable number.

242341397 is a deficient number, since it is larger than the sum of its proper divisors (494059).

242341397 is an equidigital number, since it uses as much as digits as its factorization.

242341397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494058.

The product of its digits is 36288, while the sum is 35.

The square root of 242341397 is about 15567.3182340440. The cubic root of 242341397 is about 623.4608716188.

The spelling of 242341397 in words is "two hundred forty-two million, three hundred forty-one thousand, three hundred ninety-seven".

Divisors: 1 491 493567 242341397