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616290142 = 213109217463
BaseRepresentation
bin100100101110111…
…101011101011110
31120221122210010211
4210232331131132
52230232241032
6141053123034
721162244156
oct4456753536
91527583124
10616290142
112969749a6
1215248947a
139a8b0530
145bbc7766
1539189747
hex24bbd75e

616290142 has 16 divisors (see below), whose sum is σ = 1004683680. Its totient is φ = 281830752.

The previous prime is 616290133. The next prime is 616290149. The reversal of 616290142 is 241092616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616290149) 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, 105898 + ... + 111565.

It is an arithmetic number, because the mean of its divisors is an integer number (62792730).

Almost surely, 2616290142 is an apocalyptic number.

616290142 is a deficient number, since it is larger than the sum of its proper divisors (388393538).

616290142 is a wasteful number, since it uses less digits than its factorization.

616290142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217587.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 616290142 is about 24825.1916810324. The cubic root of 616290142 is about 850.9977404924.

The spelling of 616290142 in words is "six hundred sixteen million, two hundred ninety thousand, one hundred forty-two".

Divisors: 1 2 13 26 109 218 1417 2834 217463 434926 2827019 5654038 23703467 47406934 308145071 616290142