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1430231312 = 2467219913
BaseRepresentation
bin101010100111111…
…1001100100010000
310200200020021112002
41111033321210100
510412114400222
6353530453132
750304523406
oct12517714420
93620207462
101430231312
11674367a54
1233ab941a8
1319a404b23
14d7d41476
1585867392
hex553f9910

1430231312 has 30 divisors (see below), whose sum is σ = 2813191038. Its totient is φ = 704406912.

The previous prime is 1430231273. The next prime is 1430231321. The reversal of 1430231312 is 2131320341.

It can be written as a sum of positive squares in only one way, i.e., 822312976 + 607918336 = 28676^2 + 24656^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61868 + ... + 81780.

Almost surely, 21430231312 is an apocalyptic number.

It is an amenable number.

1430231312 is a deficient number, since it is larger than the sum of its proper divisors (1382959726).

1430231312 is an equidigital number, since it uses as much as digits as its factorization.

1430231312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20055 (or 19982 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1430231312 is about 37818.3991200051. The cubic root of 1430231312 is about 1126.6839143203.

Adding to 1430231312 its reverse (2131320341), we get a palindrome (3561551653).

The spelling of 1430231312 in words is "one billion, four hundred thirty million, two hundred thirty-one thousand, three hundred twelve".

Divisors: 1 2 4 8 16 67 134 268 536 1072 4489 8978 17956 19913 35912 39826 71824 79652 159304 318608 1334171 2668342 5336684 10673368 21346736 89389457 178778914 357557828 715115656 1430231312