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158029241 = 285755313
BaseRepresentation
bin10010110101101…
…01010110111001
3102000100201100212
421122311112321
5310423413431
623403040505
73626140436
oct1132652671
9360321325
10158029241
1181226787
1244b10135
1326980736
1416db8b8d
15dd1872b
hex96b55b9

158029241 has 4 divisors (see below), whose sum is σ = 158087412. Its totient is φ = 157971072.

The previous prime is 158029237. The next prime is 158029259. The reversal of 158029241 is 142920851.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 142920851 = 569251179.

It can be written as a sum of positive squares in 2 ways, for example, as 129299641 + 28729600 = 11371^2 + 5360^2 .

It is a cyclic number.

It is not a de Polignac number, because 158029241 - 22 = 158029237 is a prime.

It is a super-2 number, since 2×1580292412 = 49946482022072162, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 158029198 and 158029207.

It is not an unprimeable number, because it can be changed into a prime (158029271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24800 + ... + 30513.

It is an arithmetic number, because the mean of its divisors is an integer number (39521853).

Almost surely, 2158029241 is an apocalyptic number.

It is an amenable number.

158029241 is a deficient number, since it is larger than the sum of its proper divisors (58171).

158029241 is an equidigital number, since it uses as much as digits as its factorization.

158029241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58170.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 158029241 is about 12570.9681806932. The cubic root of 158029241 is about 540.6453658048.

The spelling of 158029241 in words is "one hundred fifty-eight million, twenty-nine thousand, two hundred forty-one".

Divisors: 1 2857 55313 158029241