Search a number
-
+
2643150020 = 225718879643
BaseRepresentation
bin1001110110001011…
…0100010011000100
320211012112221012012
42131202310103010
520403121300040
61114135513352
7122333255510
oct23542642304
96735487165
102643150020
111136a97805
12619228858
133317a04c4
141b1075140
151070a5865
hex9d8b44c4

2643150020 has 24 divisors (see below), whose sum is σ = 6343560384. Its totient is φ = 906222816.

The previous prime is 2643150017. The next prime is 2643150031. The reversal of 2643150020 is 200513462.

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, 9439682 + ... + 9439961.

It is an arithmetic number, because the mean of its divisors is an integer number (264315016).

Almost surely, 22643150020 is an apocalyptic number.

2643150020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2643150020 is an abundant number, since it is smaller than the sum of its proper divisors (3700410364).

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

2643150020 is a wasteful number, since it uses less digits than its factorization.

2643150020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18879659 (or 18879657 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2643150020 is about 51411.5747667780. The cubic root of 2643150020 is about 1382.6341237635.

Adding to 2643150020 its reverse (200513462), we get a palindrome (2843663482).

The spelling of 2643150020 in words is "two billion, six hundred forty-three million, one hundred fifty thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 18879643 37759286 75518572 94398215 132157501 188796430 264315002 377592860 528630004 660787505 1321575010 2643150020