Search a number
-
+
2744530639 = 191279112939
BaseRepresentation
bin1010001110010110…
…0011011011001111
321002021022121020221
42203211203123033
521110044440024
61132200452211
7125004061024
oct24345433317
97067277227
102744530639
111189241544
1264717a067
133497a8536
141c070554b
15110e2e3e4
hexa39636cf

2744530639 has 8 divisors (see below), whose sum is σ = 2891264000. Its totient is φ = 2598025752.

The previous prime is 2744530603. The next prime is 2744530667. The reversal of 2744530639 is 9360354472.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2744530639 - 219 = 2744006351 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2744530595 and 2744530604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2744530669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32169 + ... + 80770.

It is an arithmetic number, because the mean of its divisors is an integer number (361408000).

Almost surely, 22744530639 is an apocalyptic number.

2744530639 is a deficient number, since it is larger than the sum of its proper divisors (146733361).

2744530639 is a wasteful number, since it uses less digits than its factorization.

2744530639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114237.

The product of its (nonzero) digits is 544320, while the sum is 43.

The square root of 2744530639 is about 52388.2681427817. The cubic root of 2744530639 is about 1400.0902389113.

The spelling of 2744530639 in words is "two billion, seven hundred forty-four million, five hundred thirty thousand, six hundred thirty-nine".

Divisors: 1 19 1279 24301 112939 2145841 144448981 2744530639