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1318420703 = 171036431171
BaseRepresentation
bin100111010010101…
…1000000011011111
310101212211201012102
41032211120003133
510200003430303
6334454155315
744446251065
oct11645300337
93355751172
101318420703
11617239a96
12309652b3b
131801b75c2
14c7158035
157ab2d288
hex4e9580df

1318420703 has 16 divisors (see below), whose sum is σ = 1412925696. Its totient is φ = 1225860480.

The previous prime is 1318420693. The next prime is 1318420711. The reversal of 1318420703 is 3070248131.

It is not a de Polignac number, because 1318420703 - 24 = 1318420687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1318420783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1125308 + ... + 1126478.

It is an arithmetic number, because the mean of its divisors is an integer number (88307856).

Almost surely, 21318420703 is an apocalyptic number.

1318420703 is a deficient number, since it is larger than the sum of its proper divisors (94504993).

1318420703 is a wasteful number, since it uses less digits than its factorization.

1318420703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1934.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 1318420703 is about 36310.0633846872. The cubic root of 1318420703 is about 1096.5236541532.

Adding to 1318420703 its reverse (3070248131), we get a palindrome (4388668834).

The spelling of 1318420703 in words is "one billion, three hundred eighteen million, four hundred twenty thousand, seven hundred three".

Divisors: 1 17 103 643 1171 1751 10931 19907 66229 120613 752953 1125893 2050421 12800201 77554159 1318420703