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1031132042 = 21741739693
BaseRepresentation
bin111101011101011…
…101001110001010
32122212020221020122
4331131131032022
54102432211132
6250152423242
734360322603
oct7535351612
92585227218
101031132042
1148a057846
122493a7b22
1313581a505
149ad32daa
15607d0912
hex3d75d38a

1031132042 has 16 divisors (see below), whose sum is σ = 1677625992. Its totient is φ = 473402880.

The previous prime is 1031132041. The next prime is 1031132051. The reversal of 1031132042 is 2402311301.

It can be written as a sum of positive squares in 4 ways, for example, as 849664201 + 181467841 = 29149^2 + 13471^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 1031132042.

It is not an unprimeable number, because it can be changed into a prime (1031132041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 368453 + ... + 371240.

Almost surely, 21031132042 is an apocalyptic number.

1031132042 is a deficient number, since it is larger than the sum of its proper divisors (646493950).

1031132042 is a wasteful number, since it uses less digits than its factorization.

1031132042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739753.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1031132042 is about 32111.2447905714. The cubic root of 1031132042 is about 1010.2714827501.

Adding to 1031132042 its reverse (2402311301), we get a palindrome (3433443343).

The spelling of 1031132042 in words is "one billion, thirty-one million, one hundred thirty-two thousand, forty-two".

Divisors: 1 2 17 34 41 82 697 1394 739693 1479386 12574781 25149562 30327413 60654826 515566021 1031132042