Search a number
-
+
2663036740 = 2257131726183
BaseRepresentation
bin1001111010111010…
…1011011101000100
320212120222021122101
42132232223131010
520423214133430
61120130041444
7122664303340
oct23656533504
96776867571
102663036740
11114723aa11
12623a19284
133359441b0
141b3970620
15108bd2dca
hex9ebab744

2663036740 has 288 divisors, whose sum is σ = 7521018624. Its totient is φ = 770826240.

The previous prime is 2663036731. The next prime is 2663036743. The reversal of 2663036740 is 476303662.

It is a self number, because there is not a number n which added to its sum of digits gives 2663036740.

It is not an unprimeable number, because it can be changed into a prime (2663036743) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 32084739 + ... + 32084821.

It is an arithmetic number, because the mean of its divisors is an integer number (26114648).

Almost surely, 22663036740 is an apocalyptic number.

2663036740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2663036740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3760509312).

2663036740 is an abundant number, since it is smaller than the sum of its proper divisors (4857981884).

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

2663036740 is a wasteful number, since it uses less digits than its factorization.

2663036740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 37.

The square root of 2663036740 is about 51604.6193668745. The cubic root of 2663036740 is about 1386.0930503408.

The spelling of 2663036740 in words is "two billion, six hundred sixty-three million, thirty-six thousand, seven hundred forty".