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1031130304 = 2619847969
BaseRepresentation
bin111101011101011…
…100110011000000
32122212020211212021
4331131130303000
54102432132204
6250152411224
734360314541
oct7535346300
92585224767
101031130304
1148a056506
122493a6b14
13135819799
149ad324c8
15607d0154
hex3d75ccc0

1031130304 has 28 divisors (see below), whose sum is σ = 2153843800. Its totient is φ = 488429568.

The previous prime is 1031130271. The next prime is 1031130307. The reversal of 1031130304 is 4030311301.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1031130307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422769 + ... + 425200.

Almost surely, 21031130304 is an apocalyptic number.

It is an amenable number.

1031130304 is an abundant number, since it is smaller than the sum of its proper divisors (1122713496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1031130304 is an equidigital number, since it uses as much as digits as its factorization.

1031130304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848000 (or 847990 counting only the distinct ones).

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

The square root of 1031130304 is about 32111.2177283889. The cubic root of 1031130304 is about 1010.2709151368.

Adding to 1031130304 its reverse (4030311301), we get a palindrome (5061441605).

The spelling of 1031130304 in words is "one billion, thirty-one million, one hundred thirty thousand, three hundred four".

Divisors: 1 2 4 8 16 19 32 38 64 76 152 304 608 1216 847969 1695938 3391876 6783752 13567504 16111411 27135008 32222822 54270016 64445644 128891288 257782576 515565152 1031130304