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523142031 = 3419587709
BaseRepresentation
bin11111001011101…
…000001110001111
31100110101100221210
4133023220032033
52032411021111
6123524425503
715651430266
oct3713501617
91313340853
10523142031
11249333395
12127248293
13844c86c9
144d69b5dd
1530dda0a6
hex1f2e838f

523142031 has 16 divisors (see below), whose sum is σ = 701366400. Its totient is φ = 346846368.

The previous prime is 523141961. The next prime is 523142051. The reversal of 523142031 is 130241325.

It is not a de Polignac number, because 523142031 - 210 = 523141007 is a prime.

It is a super-2 number, since 2×5231420312 = 547355169197609922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 523141989 and 523142007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523142051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 737505 + ... + 738213.

It is an arithmetic number, because the mean of its divisors is an integer number (43835400).

Almost surely, 2523142031 is an apocalyptic number.

523142031 is a deficient number, since it is larger than the sum of its proper divisors (178224369).

523142031 is a wasteful number, since it uses less digits than its factorization.

523142031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 523142031 is about 22872.2983322621. The cubic root of 523142031 is about 805.7615472494.

Adding to 523142031 its reverse (130241325), we get a palindrome (653383356).

It can be divided in two parts, 52314 and 2031, that added together give a palindrome (54345).

The spelling of 523142031 in words is "five hundred twenty-three million, one hundred forty-two thousand, thirty-one".

Divisors: 1 3 419 587 709 1257 1761 2127 245953 297071 416183 737859 891213 1248549 174380677 523142031