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516949143 = 3227759103
BaseRepresentation
bin11110110100000…
…000010010010111
31100000201201220120
4132310000102113
52024314333033
6123144003023
715544665234
oct3664002227
91300651816
10516949143
112458935a7
12125160473
138313a989
144c92878b
15305b51b3
hex1ed00497

516949143 has 8 divisors (see below), whose sum is σ = 692302848. Its totient is φ = 343114104.

The previous prime is 516949133. The next prime is 516949151. The reversal of 516949143 is 341949615.

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

It is not a de Polignac number, because 516949143 - 213 = 516940951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 516949095 and 516949104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516949133) 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, 378871 + ... + 380232.

It is an arithmetic number, because the mean of its divisors is an integer number (86537856).

Almost surely, 2516949143 is an apocalyptic number.

516949143 is a deficient number, since it is larger than the sum of its proper divisors (175353705).

516949143 is a wasteful number, since it uses less digits than its factorization.

516949143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759333.

The product of its digits is 116640, while the sum is 42.

The square root of 516949143 is about 22736.5156301488. The cubic root of 516949143 is about 802.5694174285.

The spelling of 516949143 in words is "five hundred sixteen million, nine hundred forty-nine thousand, one hundred forty-three".

Divisors: 1 3 227 681 759103 2277309 172316381 516949143