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2746149220 = 225137307461
BaseRepresentation
bin1010001110101110…
…1110100101100100
321002101100211112101
42203223232211210
521111003233340
61132255301444
7125023611643
oct24353564544
97071324471
102746149220
11118a147611
1264781a884
13349c24189
141c0a0735a
1511114dc9a
hexa3aee964

2746149220 has 12 divisors (see below), whose sum is σ = 5766913404. Its totient is φ = 1098459680.

The previous prime is 2746149157. The next prime is 2746149227. The reversal of 2746149220 is 229416472.

It can be written as a sum of positive squares in 2 ways, for example, as 1865721636 + 880427584 = 43194^2 + 29672^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2746149220.

It is not an unprimeable number, because it can be changed into a prime (2746149227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68653711 + ... + 68653750.

It is an arithmetic number, because the mean of its divisors is an integer number (480576117).

Almost surely, 22746149220 is an apocalyptic number.

2746149220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2746149220 is an abundant number, since it is smaller than the sum of its proper divisors (3020764184).

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

2746149220 is a wasteful number, since it uses less digits than its factorization.

2746149220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137307470 (or 137307468 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 2746149220 is about 52403.7137996917. The cubic root of 2746149220 is about 1400.3654182182.

The spelling of 2746149220 in words is "two billion, seven hundred forty-six million, one hundred forty-nine thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 137307461 274614922 549229844 686537305 1373074610 2746149220