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242352231 = 31123491913
BaseRepresentation
bin11100111001000…
…00000001100111
3121220000202202120
432130200001213
5444020232411
640014241023
76001650162
oct1634400147
9556022676
10242352231
1111488a900
12691b6173
133b2956b4
1424288ad9
1516423106
hexe720067

242352231 has 24 divisors (see below), whose sum is σ = 356386800. Its totient is φ = 146382720.

The previous prime is 242352211. The next prime is 242352233. The reversal of 242352231 is 132253242.

It is not a de Polignac number, because 242352231 - 26 = 242352167 is a prime.

It is a super-2 number, since 2×2423522312 = 117469207741354722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242352233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125731 + ... + 127643.

It is an arithmetic number, because the mean of its divisors is an integer number (14849450).

Almost surely, 2242352231 is an apocalyptic number.

242352231 is a deficient number, since it is larger than the sum of its proper divisors (114034569).

242352231 is a wasteful number, since it uses less digits than its factorization.

242352231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2287 (or 2276 counting only the distinct ones).

The product of its digits is 2880, while the sum is 24.

The square root of 242352231 is about 15567.6662027421. Note that the first 3 decimals coincide. The cubic root of 242352231 is about 623.4701621960.

The spelling of 242352231 in words is "two hundred forty-two million, three hundred fifty-two thousand, two hundred thirty-one".

Divisors: 1 3 11 33 121 349 363 1047 1913 3839 5739 11517 21043 42229 63129 126687 231473 667637 694419 2002911 7344007 22032021 80784077 242352231