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242308143 = 327113171103
BaseRepresentation
bin11100111000101…
…01010000101111
3121212221112021200
432130111100233
5444012330033
640013300543
76001404510
oct1634252057
9555845250
10242308143
1111485a770
1269194753
133b27b5cc
1424276a07
1516415013
hexe71542f

242308143 has 48 divisors (see below), whose sum is σ = 438137856. Its totient is φ = 125363520.

The previous prime is 242308111. The next prime is 242308163. The reversal of 242308143 is 341803242.

It is not a de Polignac number, because 242308143 - 25 = 242308111 is a prime.

It is a super-3 number, since 3×2423081433 (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242308163) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 219130 + ... + 220232.

It is an arithmetic number, because the mean of its divisors is an integer number (9127872).

Almost surely, 2242308143 is an apocalyptic number.

242308143 is a deficient number, since it is larger than the sum of its proper divisors (195829713).

242308143 is a wasteful number, since it uses less digits than its factorization.

242308143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444 (or 1441 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 242308143 is about 15566.2501264755. The cubic root of 242308143 is about 623.4323532882.

The spelling of 242308143 in words is "two hundred forty-two million, three hundred eight thousand, one hundred forty-three".

Divisors: 1 3 7 9 11 21 33 63 77 99 231 317 693 951 1103 2219 2853 3309 3487 6657 7721 9927 10461 12133 19971 23163 24409 31383 36399 69489 73227 84931 109197 219681 254793 349651 764379 1048953 2447557 3146859 3846161 7342671 11538483 22028013 26923127 34615449 80769381 242308143