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242843454 = 23374713669
BaseRepresentation
bin11100111100101…
…11111100111110
3121220221201121000
432132113330332
5444131442304
640032551130
76006064260
oct1636277476
9556851530
10242843454
11115095977
12693b24a6
133b408169
1424375b30
15164bd939
hexe797f3e

242843454 has 64 divisors (see below), whose sum is σ = 629913600. Its totient is φ = 67902624.

The previous prime is 242843437. The next prime is 242843459. The reversal of 242843454 is 454348242.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242843459) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10932 + ... + 24600.

It is an arithmetic number, because the mean of its divisors is an integer number (9842400).

Almost surely, 2242843454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 242843454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314956800).

242843454 is an abundant number, since it is smaller than the sum of its proper divisors (387070146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242843454 is a wasteful number, since it uses less digits than its factorization.

242843454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13734 (or 13728 counting only the distinct ones).

The product of its digits is 122880, while the sum is 36.

The square root of 242843454 is about 15583.4352438735. The cubic root of 242843454 is about 623.8911145069.

The spelling of 242843454 in words is "two hundred forty-two million, eight hundred forty-three thousand, four hundred fifty-four".

Divisors: 1 2 3 6 7 9 14 18 21 27 42 47 54 63 94 126 141 189 282 329 378 423 658 846 987 1269 1974 2538 2961 5922 8883 13669 17766 27338 41007 82014 95683 123021 191366 246042 287049 369063 574098 642443 738126 861147 1284886 1722294 1927329 2583441 3854658 4497101 5166882 5781987 8994202 11563974 13491303 17345961 26982606 34691922 40473909 80947818 121421727 242843454