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1320122012 = 2211173375237
BaseRepresentation
bin100111010101111…
…0111011010011100
310102000001010221212
41032223313122130
510200422401022
6334554443552
744466565136
oct11653673234
93360033855
101320122012
116181a1230
1230a1335b8
13180661ab1
14c747c056
157ad673e2
hex4eaf769c

1320122012 has 48 divisors (see below), whose sum is σ = 2676911328. Its totient is φ = 562974720.

The previous prime is 1320122009. The next prime is 1320122077. The reversal of 1320122012 is 2102210231.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249458 + ... + 254694.

It is an arithmetic number, because the mean of its divisors is an integer number (55768986).

Almost surely, 21320122012 is an apocalyptic number.

It is an amenable number.

1320122012 is an abundant number, since it is smaller than the sum of its proper divisors (1356789316).

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

1320122012 is a wasteful number, since it uses less digits than its factorization.

1320122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5606 (or 5604 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1320122012 is about 36333.4833452561. The cubic root of 1320122012 is about 1096.9951080420.

Adding to 1320122012 its reverse (2102210231), we get a palindrome (3422332243).

The spelling of 1320122012 in words is "one billion, three hundred twenty million, one hundred twenty-two thousand, twelve".

Divisors: 1 2 4 11 17 22 34 44 68 187 337 374 674 748 1348 3707 5237 5729 7414 10474 11458 14828 20948 22916 57607 63019 89029 115214 126038 178058 230428 252076 356116 979319 1764869 1958638 3529738 3917276 7059476 19413559 30002773 38827118 60005546 77654236 120011092 330030503 660061006 1320122012