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1030431130 = 25372784949
BaseRepresentation
bin111101011010110…
…010000110011010
32122210221022202221
4331122302012122
54102242244010
6250125414254
734351343251
oct7532620632
92583838687
101030431130
11489719183
1224910a38a
13135633481
149abcd798
15606e2dda
hex3d6b219a

1030431130 has 16 divisors (see below), whose sum is σ = 1904905800. Its totient is φ = 401032512.

The previous prime is 1030431113. The next prime is 1030431133. The reversal of 1030431130 is 311340301.

It can be written as a sum of positive squares in 4 ways, for example, as 1016525689 + 13905441 = 31883^2 + 3729^2 .

It is not an unprimeable number, because it can be changed into a prime (1030431133) 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, 1392105 + ... + 1392844.

Almost surely, 21030431130 is an apocalyptic number.

1030431130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1030431130 is a deficient number, since it is larger than the sum of its proper divisors (874474670).

1030431130 is a wasteful number, since it uses less digits than its factorization.

1030431130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2784993.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1030431130 is about 32100.3291260386. The cubic root of 1030431130 is about 1010.0425201849.

Adding to 1030431130 its reverse (311340301), we get a palindrome (1341771431).

The spelling of 1030431130 in words is "one billion, thirty million, four hundred thirty-one thousand, one hundred thirty".

Divisors: 1 2 5 10 37 74 185 370 2784949 5569898 13924745 27849490 103043113 206086226 515215565 1030431130