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238517061 = 3237347353
BaseRepresentation
bin11100011011101…
…11101101000101
3121121210220220020
432031313231011
5442030021221
635400125353
75624235006
oct1615675505
9547726806
10238517061
11112700442
1267a66859
133a551b73
142396b1ad
1515e16ac6
hexe377b45

238517061 has 16 divisors (see below), whose sum is σ = 336402816. Its totient is φ = 150011136.

The previous prime is 238517047. The next prime is 238517077. The reversal of 238517061 is 160715832.

It is not a de Polignac number, because 238517061 - 210 = 238516037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238557061) 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 15 ways as a sum of consecutive naturals, for example, 18640 + ... + 28713.

It is an arithmetic number, because the mean of its divisors is an integer number (21025176).

Almost surely, 2238517061 is an apocalyptic number.

It is an amenable number.

238517061 is a deficient number, since it is larger than the sum of its proper divisors (97885755).

238517061 is a wasteful number, since it uses less digits than its factorization.

238517061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47452.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 238517061 is about 15443.9975718724. The cubic root of 238517061 is about 620.1639013434.

The spelling of 238517061 in words is "two hundred thirty-eight million, five hundred seventeen thousand, sixty-one".

Divisors: 1 3 23 69 73 219 1679 5037 47353 142059 1089119 3267357 3456769 10370307 79505687 238517061