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1230431304 = 233173015763
BaseRepresentation
bin100100101010110…
…1110010001001000
310011202021101102210
41021111232101020
510004442300204
6322032225120
742330331164
oct11125562110
93152241383
101230431304
11581601283
122a409b1a0
13167bba87b
14b95b1ca4
157304c389
hex4956e448

1230431304 has 32 divisors (see below), whose sum is σ = 3257025120. Its totient is φ = 386017536.

The previous prime is 1230431281. The next prime is 1230431339. The reversal of 1230431304 is 4031340321.

It is a super-2 number, since 2×12304313042 = 3027922387726280832, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1507474 + ... + 1508289.

It is an arithmetic number, because the mean of its divisors is an integer number (101782035).

Almost surely, 21230431304 is an apocalyptic number.

It is an amenable number.

1230431304 is an abundant number, since it is smaller than the sum of its proper divisors (2026593816).

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

1230431304 is a wasteful number, since it uses less digits than its factorization.

1230431304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3015789 (or 3015785 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1230431304 is about 35077.5042441734. The cubic root of 1230431304 is about 1071.5664899893.

Adding to 1230431304 its reverse (4031340321), we get a palindrome (5261771625).

The spelling of 1230431304 in words is "one billion, two hundred thirty million, four hundred thirty-one thousand, three hundred four".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 204 408 3015763 6031526 9047289 12063052 18094578 24126104 36189156 51267971 72378312 102535942 153803913 205071884 307607826 410143768 615215652 1230431304