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242846281 = 3137211723
BaseRepresentation
bin11100111100110…
…00101001001001
3121220221212110201
432132120221021
5444132040111
640033012201
76006105436
oct1636305111
9556855421
10242846281
11115098007
12693b4061
133b409532
1424376b8d
15164be6c1
hexe798a49

242846281 has 8 divisors (see below), whose sum is σ = 257456384. Its totient is φ = 228659760.

The previous prime is 242846243. The next prime is 242846287. The reversal of 242846281 is 182648242.

242846281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 242846281 - 215 = 242813513 is a prime.

It is a super-2 number, since 2×2428462812 = 117948632391061922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242846281.

It is not an unprimeable number, because it can be changed into a prime (242846287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104715 + ... + 107008.

It is an arithmetic number, because the mean of its divisors is an integer number (32182048).

Almost surely, 2242846281 is an apocalyptic number.

It is an amenable number.

242846281 is a deficient number, since it is larger than the sum of its proper divisors (14610103).

242846281 is a wasteful number, since it uses less digits than its factorization.

242846281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211791.

The product of its digits is 49152, while the sum is 37.

The square root of 242846281 is about 15583.5259488987. The cubic root of 242846281 is about 623.8935354539.

The spelling of 242846281 in words is "two hundred forty-two million, eight hundred forty-six thousand, two hundred eighty-one".

Divisors: 1 31 37 1147 211723 6563413 7833751 242846281