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2689160260 = 225134458013
BaseRepresentation
bin1010000001001001…
…0101010001000100
320221102010111101011
42200102111101010
521001411112020
61122502012004
7123432325243
oct24022252104
96842114334
102689160260
11115aa629a6
12630717004
1333b18c8b7
141b721095a
1510b14335a
hexa0495444

2689160260 has 12 divisors (see below), whose sum is σ = 5647236588. Its totient is φ = 1075664096.

The previous prime is 2689160251. The next prime is 2689160261. The reversal of 2689160260 is 620619862.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1194255364 + 1494904896 = 34558^2 + 38664^2 .

It is not an unprimeable number, because it can be changed into a prime (2689160261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67228987 + ... + 67229026.

It is an arithmetic number, because the mean of its divisors is an integer number (470603049).

Almost surely, 22689160260 is an apocalyptic number.

2689160260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2689160260 is an abundant number, since it is smaller than the sum of its proper divisors (2958076328).

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

2689160260 is a wasteful number, since it uses less digits than its factorization.

2689160260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134458022 (or 134458020 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 2689160260 is about 51857.1138803540. The cubic root of 2689160260 is about 1390.6106834767.

The spelling of 2689160260 in words is "two billion, six hundred eighty-nine million, one hundred sixty thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 134458013 268916026 537832052 672290065 1344580130 2689160260