Search a number
-
+
30874581008 = 2417113509489
BaseRepresentation
bin11100110000010001…
…001011100000010000
32221200200222012222022
4130300101023200100
51001212343043013
622103353231012
72142046415465
oct346021134020
987620865868
1030874581008
1112103994757
125b97a02468
132bb062b95b
1416cc66966c
15c0a7d4008
hex73044b810

30874581008 has 20 divisors (see below), whose sum is σ = 63338295420. Its totient is φ = 14529214464.

The previous prime is 30874580981. The next prime is 30874581019. The reversal of 30874581008 is 80018547803.

It can be written as a sum of positive squares in 2 ways, for example, as 8294109184 + 22580471824 = 91072^2 + 150268^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30874581008.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56754473 + ... + 56755016.

It is an arithmetic number, because the mean of its divisors is an integer number (3166914771).

Almost surely, 230874581008 is an apocalyptic number.

It is an amenable number.

30874581008 is an abundant number, since it is smaller than the sum of its proper divisors (32463714412).

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

30874581008 is a wasteful number, since it uses less digits than its factorization.

30874581008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113509514 (or 113509508 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 44.

The spelling of 30874581008 in words is "thirty billion, eight hundred seventy-four million, five hundred eighty-one thousand, eight".

Divisors: 1 2 4 8 16 17 34 68 136 272 113509489 227018978 454037956 908075912 1816151824 1929661313 3859322626 7718645252 15437290504 30874581008