Search a number
-
+
2749924080 = 243551753157
BaseRepresentation
bin1010001111101000…
…1000001011110000
321002122110121200000
42203322020023300
521112440032310
61132512230000
7125100653241
oct24372101360
97078417600
102749924080
111191295732
12648b3b300
1334a946417
141c130acc8
151116474c0
hexa3e882f0

2749924080 has 480 divisors, whose sum is σ = 10397709504. Its totient is φ = 672841728.

The previous prime is 2749924033. The next prime is 2749924129. The reversal of 2749924080 is 804299472.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 17515362 + ... + 17515518.

Almost surely, 22749924080 is an apocalyptic number.

2749924080 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 2749924080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5198854752).

2749924080 is an abundant number, since it is smaller than the sum of its proper divisors (7647785424).

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

2749924080 is a wasteful number, since it uses less digits than its factorization.

2749924080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 2749924080 is about 52439.7185347137. The cubic root of 2749924080 is about 1401.0067724317.

The spelling of 2749924080 in words is "two billion, seven hundred forty-nine million, nine hundred twenty-four thousand, eighty".