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515252141 = 2379283573
BaseRepresentation
bin11110101101100…
…001111110101101
31022220112112001122
4132231201332231
52023401032031
6123043350325
715524366555
oct3655417655
91286475048
10515252141
11244934618
121246823a5
1382995431
144c606165
153037c47b
hex1eb61fad

515252141 has 8 divisors (see below), whose sum is σ = 544462080. Its totient is φ = 486609552.

The previous prime is 515252137. The next prime is 515252159. The reversal of 515252141 is 141252515.

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 515252141 - 22 = 515252137 is a prime.

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 515252141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515258141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139970 + ... + 143603.

It is an arithmetic number, because the mean of its divisors is an integer number (68057760).

Almost surely, 2515252141 is an apocalyptic number.

It is an amenable number.

515252141 is a deficient number, since it is larger than the sum of its proper divisors (29209939).

515252141 is a wasteful number, since it uses less digits than its factorization.

515252141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283675.

The product of its digits is 2000, while the sum is 26.

The square root of 515252141 is about 22699.1660860041. The cubic root of 515252141 is about 801.6902497422.

The spelling of 515252141 in words is "five hundred fifteen million, two hundred fifty-two thousand, one hundred forty-one".

Divisors: 1 23 79 1817 283573 6522179 22402267 515252141