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151240241 = 1518231217
BaseRepresentation
bin10010000001110…
…11111000110001
3101112120210121102
421000323320301
5302204141431
623001334145
73514343435
oct1100737061
9345523542
10151240241
117840a039
1242797355
1325444589
141612c9c5
15d426dcb
hex903be31

151240241 has 8 divisors (see below), whose sum is σ = 152552064. Its totient is φ = 149932800.

The previous prime is 151240237. The next prime is 151240259. The reversal of 151240241 is 142042151.

It is a happy number.

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 151240241 - 22 = 151240237 is a prime.

It is a super-2 number, since 2×1512402412 = 45747220995476162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151240261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123665 + ... + 124881.

It is an arithmetic number, because the mean of its divisors is an integer number (19069008).

Almost surely, 2151240241 is an apocalyptic number.

It is an amenable number.

151240241 is a deficient number, since it is larger than the sum of its proper divisors (1311823).

151240241 is a wasteful number, since it uses less digits than its factorization.

151240241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2191.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 151240241 is about 12297.9771100779. The cubic root of 151240241 is about 532.7896589498.

Adding to 151240241 its reverse (142042151), we get a palindrome (293282392).

The spelling of 151240241 in words is "one hundred fifty-one million, two hundred forty thousand, two hundred forty-one".

Divisors: 1 151 823 1217 124273 183767 1001591 151240241