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1311214092 = 223192302681
BaseRepresentation
bin100111000100111…
…1000101000001100
310101101021120120220
41032021320220030
510141132322332
6334035511340
744331064416
oct11611705014
93341246526
101311214092
11613167611
12307158550
1317b863336
14c61dd9b6
157a1a7d2c
hex4e278a0c

1311214092 has 36 divisors (see below), whose sum is σ = 3229011576. Its totient is φ = 414066240.

The previous prime is 1311214081. The next prime is 1311214109. The reversal of 1311214092 is 2904121131.

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 in 11 ways as a sum of consecutive naturals, for example, 147009 + ... + 155672.

It is an arithmetic number, because the mean of its divisors is an integer number (89694766).

Almost surely, 21311214092 is an apocalyptic number.

1311214092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1311214092 is an abundant number, since it is smaller than the sum of its proper divisors (1917797484).

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

1311214092 is a wasteful number, since it uses less digits than its factorization.

1311214092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302726 (or 302705 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 1311214092 is about 36210.6902999653. The cubic root of 1311214092 is about 1094.5221025030.

The spelling of 1311214092 in words is "one billion, three hundred eleven million, two hundred fourteen thousand, ninety-two".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 361 722 1083 1444 2166 4332 302681 605362 908043 1210724 1816086 3632172 5750939 11501878 17252817 23003756 34505634 69011268 109267841 218535682 327803523 437071364 655607046 1311214092