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1310122312 = 23163765289
BaseRepresentation
bin100111000010110…
…1110000101001000
310101022020002221121
41032011232011020
510140342403222
6334000245024
744315566402
oct11605560510
93338202847
101310122312
11612591314
12306910774
1317b570405
14c5dd7b72
157a03e5c7
hex4e16e148

1310122312 has 8 divisors (see below), whose sum is σ = 2456479350. Its totient is φ = 655061152.

The previous prime is 1310122309. The next prime is 1310122327. The reversal of 1310122312 is 2132210131.

It can be written as a sum of positive squares in only one way, i.e., 839492676 + 470629636 = 28974^2 + 21694^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 81882637 + ... + 81882652.

Almost surely, 21310122312 is an apocalyptic number.

It is an amenable number.

1310122312 is a deficient number, since it is larger than the sum of its proper divisors (1146357038).

1310122312 is a wasteful number, since it uses less digits than its factorization.

1310122312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163765295 (or 163765291 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1310122312 is about 36195.6117782253. The cubic root of 1310122312 is about 1094.2182342110.

Adding to 1310122312 its reverse (2132210131), we get a palindrome (3442332443).

The spelling of 1310122312 in words is "one billion, three hundred ten million, one hundred twenty-two thousand, three hundred twelve".

Divisors: 1 2 4 8 163765289 327530578 655061156 1310122312