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242471401 = 6118121961
BaseRepresentation
bin11100111001111…
…01000111101001
3121220020211020021
432130331013221
5444033041101
640021000441
76002654464
oct1634750751
9556224207
10242471401
11114961397
1269253121
133b307a03
14242ba2db
15164485a1
hexe73d1e9

242471401 has 8 divisors (see below), whose sum is σ = 247819208. Its totient is φ = 237168000.

The previous prime is 242471399. The next prime is 242471419. The reversal of 242471401 is 104174242.

It can be written as a sum of positive squares in 4 ways, for example, as 2190400 + 240281001 = 1480^2 + 15501^2 .

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

It is not a de Polignac number, because 242471401 - 21 = 242471399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242471501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61 + ... + 22021.

It is an arithmetic number, because the mean of its divisors is an integer number (30977401).

Almost surely, 2242471401 is an apocalyptic number.

It is an amenable number.

242471401 is a deficient number, since it is larger than the sum of its proper divisors (5347807).

242471401 is a wasteful number, since it uses less digits than its factorization.

242471401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22203.

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 242471401 is about 15571.4932167728. The cubic root of 242471401 is about 623.5723368478.

The spelling of 242471401 in words is "two hundred forty-two million, four hundred seventy-one thousand, four hundred one".

Divisors: 1 61 181 11041 21961 1339621 3974941 242471401