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1312444434 = 23731248677
BaseRepresentation
bin100111000111010…
…0101000000010010
310101110121002022010
41032032211000102
510141441210214
6334122123350
744344410420
oct11616450022
93343532263
101312444434
11613927a24
12307650556
1317bba4352
14c6440110
157a34c659
hex4e3a5012

1312444434 has 16 divisors (see below), whose sum is σ = 2999873088. Its totient is φ = 374984112.

The previous prime is 1312444433. The next prime is 1312444451. The reversal of 1312444434 is 4344442131.

It is not an unprimeable number, because it can be changed into a prime (1312444433) 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, 15624297 + ... + 15624380.

It is an arithmetic number, because the mean of its divisors is an integer number (187492068).

Almost surely, 21312444434 is an apocalyptic number.

1312444434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1312444434 is an abundant number, since it is smaller than the sum of its proper divisors (1687428654).

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

1312444434 is a wasteful number, since it uses less digits than its factorization.

1312444434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31248689.

The product of its digits is 18432, while the sum is 30.

The square root of 1312444434 is about 36227.6749736993. The cubic root of 1312444434 is about 1094.8643338104.

Adding to 1312444434 its reverse (4344442131), we get a palindrome (5656886565).

The spelling of 1312444434 in words is "one billion, three hundred twelve million, four hundred forty-four thousand, four hundred thirty-four".

Divisors: 1 2 3 6 7 14 21 42 31248677 62497354 93746031 187492062 218740739 437481478 656222217 1312444434