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1031430142 = 219716091627
BaseRepresentation
bin111101011110100…
…101111111111110
32122212211002011101
4331132211333332
54103021231032
6250203043314
734363003651
oct7536457776
92585732141
101031430142
1148a240806
1224951053a
131358c30c2
149adad898
156083dde7
hex3d7a5ffe

1031430142 has 16 divisors (see below), whose sum is σ = 1556921520. Its totient is φ = 512463168.

The previous prime is 1031430097. The next prime is 1031430149. The reversal of 1031430142 is 2410341301.

It is a super-2 number, since 2×10314301422 = 2127696275652280328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031430149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 633133 + ... + 634759.

It is an arithmetic number, because the mean of its divisors is an integer number (97307595).

Almost surely, 21031430142 is an apocalyptic number.

1031430142 is a deficient number, since it is larger than the sum of its proper divisors (525491378).

1031430142 is a wasteful number, since it uses less digits than its factorization.

1031430142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3435.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1031430142 is about 32115.8861313214. The cubic root of 1031430142 is about 1010.3688297757.

Adding to 1031430142 its reverse (2410341301), we get a palindrome (3441771443).

The spelling of 1031430142 in words is "one billion, thirty-one million, four hundred thirty thousand, one hundred forty-two".

Divisors: 1 2 197 394 1609 1627 3218 3254 316973 320519 633946 641038 2617843 5235686 515715071 1031430142