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1285314164 = 226116731543
BaseRepresentation
bin100110010011100…
…0101011001110100
310022120112201120022
41030213011121310
510113020023124
6331312424312
743564663421
oct11447053164
93276481508
101285314164
115aa587612
122ba548098
13176395634
14c29bad48
1577c8dc5e
hex4c9c5674

1285314164 has 24 divisors (see below), whose sum is σ = 2299936128. Its totient is φ = 628316640.

The previous prime is 1285314143. The next prime is 1285314167. The reversal of 1285314164 is 4614135821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1285314167) 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, 24977 + ... + 56519.

It is an arithmetic number, because the mean of its divisors is an integer number (95830672).

Almost surely, 21285314164 is an apocalyptic number.

It is an amenable number.

1285314164 is a deficient number, since it is larger than the sum of its proper divisors (1014621964).

1285314164 is a wasteful number, since it uses less digits than its factorization.

1285314164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31775 (or 31773 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The square root of 1285314164 is about 35851.2784151416. The cubic root of 1285314164 is about 1087.2675616147.

Adding to 1285314164 its reverse (4614135821), we get a palindrome (5899449985).

The spelling of 1285314164 in words is "one billion, two hundred eighty-five million, three hundred fourteen thousand, one hundred sixty-four".

Divisors: 1 2 4 61 122 167 244 334 668 10187 20374 31543 40748 63086 126172 1924123 3848246 5267681 7696492 10535362 21070724 321328541 642657082 1285314164