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1131310430 = 252317927479
BaseRepresentation
bin100001101101110…
…0110110101011110
32220211202112011022
41003123212311132
54304103413210
6304131524142
740014660065
oct10333466536
92824675138
101131310430
115306602a8
12276a59652
131504c4273
14aa36d1dc
15694bd155
hex436e6d5e

1131310430 has 32 divisors (see below), whose sum is σ = 2136844800. Its totient is φ = 430415392.

The previous prime is 1131310403. The next prime is 1131310447. The reversal of 1131310430 is 340131311.

It is a junction number, because it is equal to n+sod(n) for n = 1131310399 and 1131310408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27431 + ... + 54909.

It is an arithmetic number, because the mean of its divisors is an integer number (66776400).

Almost surely, 21131310430 is an apocalyptic number.

1131310430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131310430 is a deficient number, since it is larger than the sum of its proper divisors (1005534370).

1131310430 is a wasteful number, since it uses less digits than its factorization.

1131310430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27688.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1131310430 is about 33634.9584509926. The cubic root of 1131310430 is about 1041.9829125197.

Adding to 1131310430 its reverse (340131311), we get a palindrome (1471441741).

The spelling of 1131310430 in words is "one billion, one hundred thirty-one million, three hundred ten thousand, four hundred thirty".

Divisors: 1 2 5 10 23 46 115 179 230 358 895 1790 4117 8234 20585 27479 41170 54958 137395 274790 632017 1264034 3160085 4918741 6320170 9837482 24593705 49187410 113131043 226262086 565655215 1131310430