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260138112 = 2731331412
BaseRepresentation
bin11111000000101…
…10010010000000
3200010111101101220
433200112102000
51013043404422
641451355040
76306065103
oct1740262200
9603441356
10260138112
11123928683
1273152a80
1341b820a0
142679873a
1517c87e5c
hexf816480

260138112 has 192 divisors, whose sum is σ = 787342080. Its totient is φ = 75571200.

The previous prime is 260138093. The next prime is 260138113. The reversal of 260138112 is 211831062.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260138113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6344812 + ... + 6344852.

It is an arithmetic number, because the mean of its divisors is an integer number (4100740).

Almost surely, 2260138112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 260138112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (393671040).

260138112 is an abundant number, since it is smaller than the sum of its proper divisors (527203968).

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

260138112 is a wasteful number, since it uses less digits than its factorization.

260138112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 260138112 is about 16128.7975993253. The cubic root of 260138112 is about 638.3634227572.

Adding to 260138112 its reverse (211831062), we get a palindrome (471969174).

The spelling of 260138112 in words is "two hundred sixty million, one hundred thirty-eight thousand, one hundred twelve".