Search a number
-
+
30280737589 = 194219377749
BaseRepresentation
bin11100001100110111…
…110110001100110101
32220011022112211221121
4130030313312030311
5444003332100324
621524421143541
72121246010534
oct341467661465
986138484847
1030280737589
1111929761373
125a50b5abb1
132b175aa40b
14167384631b
15bc35d05e4
hex70cdf6335

30280737589 has 8 divisors (see below), whose sum is σ = 31882100000. Its totient is φ = 28680139152.

The previous prime is 30280737541. The next prime is 30280737631. The reversal of 30280737589 is 98573708203.

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

It is not a de Polignac number, because 30280737589 - 221 = 30278640437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30280767589) 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, 108714 + ... + 269035.

It is an arithmetic number, because the mean of its divisors is an integer number (3985262500).

Almost surely, 230280737589 is an apocalyptic number.

It is an amenable number.

30280737589 is a deficient number, since it is larger than the sum of its proper divisors (1601362411).

30280737589 is a wasteful number, since it uses less digits than its factorization.

30280737589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381987.

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 30280737589 in words is "thirty billion, two hundred eighty million, seven hundred thirty-seven thousand, five hundred eighty-nine".

Divisors: 1 19 4219 80161 377749 7177231 1593723031 30280737589