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2945380880 = 245132832097
BaseRepresentation
bin1010111110001110…
…1111001000010000
321121021020211222202
42233203233020100
522013004142010
61204133422332
7132663216161
oct25743571020
97537224882
102945380880
111281655282
126a249a9a8
1337c29c830
141dd269768
151238a56a5
hexaf8ef210

2945380880 has 40 divisors (see below), whose sum is σ = 7374783192. Its totient is φ = 1087524864.

The previous prime is 2945380877. The next prime is 2945380939. The reversal of 2945380880 is 880835492.

2945380880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 288184576 + 2657196304 = 16976^2 + 51548^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1415009 + ... + 1417088.

Almost surely, 22945380880 is an apocalyptic number.

2945380880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2945380880 is an abundant number, since it is smaller than the sum of its proper divisors (4429402312).

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

2945380880 is a wasteful number, since it uses less digits than its factorization.

2945380880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2832123 (or 2832117 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 47.

The square root of 2945380880 is about 54271.3633512187. The cubic root of 2945380880 is about 1433.4431966747.

The spelling of 2945380880 in words is "two billion, nine hundred forty-five million, three hundred eighty thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 13 16 20 26 40 52 65 80 104 130 208 260 520 1040 2832097 5664194 11328388 14160485 22656776 28320970 36817261 45313552 56641940 73634522 113283880 147269044 184086305 226567760 294538088 368172610 589076176 736345220 1472690440 2945380880