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2721344260 = 225136067213
BaseRepresentation
bin1010001000110100…
…0110101100000100
321000122200121112011
42202031012230010
521033131004020
61130011504004
7124303021165
oct24215065404
97018617464
102721344260
111177145248
1263b458004
13344a4a99b
141bb5cb76c
1510dd9e35a
hexa2346b04

2721344260 has 12 divisors (see below), whose sum is σ = 5714822988. Its totient is φ = 1088537696.

The previous prime is 2721344239. The next prime is 2721344273. The reversal of 2721344260 is 624431272.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 572836356 + 2148507904 = 23934^2 + 46352^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68033587 + ... + 68033626.

It is an arithmetic number, because the mean of its divisors is an integer number (476235249).

Almost surely, 22721344260 is an apocalyptic number.

2721344260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2721344260 is an abundant number, since it is smaller than the sum of its proper divisors (2993478728).

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

2721344260 is a wasteful number, since it uses less digits than its factorization.

2721344260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136067222 (or 136067220 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 2721344260 is about 52166.5051541696. The cubic root of 2721344260 is about 1396.1363299836.

The spelling of 2721344260 in words is "two billion, seven hundred twenty-one million, three hundred forty-four thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 136067213 272134426 544268852 680336065 1360672130 2721344260