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2643683090 = 2517106114657
BaseRepresentation
bin1001110110010011…
…0110011100010010
320211020120000102112
42131210312130102
520403240324330
61114155145322
7122340635606
oct23544663422
96736500375
102643683090
111137321264
12619445242
13331929029
141b1173506
1510715d795
hex9d936712

2643683090 has 32 divisors (see below), whose sum is σ = 5043641904. Its totient is φ = 994263040.

The previous prime is 2643683071. The next prime is 2643683093. The reversal of 2643683090 is 903863462.

2643683090 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 8 ways, for example, as 2457878929 + 185804161 = 49577^2 + 13631^2 .

It is not an unprimeable number, because it can be changed into a prime (2643683093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173042 + ... + 187698.

Almost surely, 22643683090 is an apocalyptic number.

2643683090 is a deficient number, since it is larger than the sum of its proper divisors (2399958814).

2643683090 is a wasteful number, since it uses less digits than its factorization.

2643683090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15742.

The product of its (nonzero) digits is 186624, while the sum is 41.

The square root of 2643683090 is about 51416.7588437856. The cubic root of 2643683090 is about 1382.7270673124.

The spelling of 2643683090 in words is "two billion, six hundred forty-three million, six hundred eighty-three thousand, ninety".

Divisors: 1 2 5 10 17 34 85 170 1061 2122 5305 10610 14657 18037 29314 36074 73285 90185 146570 180370 249169 498338 1245845 2491690 15551077 31102154 77755385 155510770 264368309 528736618 1321841545 2643683090