Search a number
-
+
30146250640 = 2451134257103
BaseRepresentation
bin11100000100110110…
…110100011110010000
32212210221111012112111
4130010312310132100
5443214420010030
621503214435104
72115023621362
oct340466643620
985727435474
1030146250640
111186a855330
125a13b02a94
132ac578053c
14165da38d32
15bb68b762a
hex704db4790

30146250640 has 40 divisors (see below), whose sum is σ = 76461856128. Its totient is φ = 10962272640.

The previous prime is 30146250583. The next prime is 30146250677. The reversal of 30146250640 is 4605264103.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17127672 + ... + 17129431.

Almost surely, 230146250640 is an apocalyptic number.

It is an amenable number.

30146250640 is an abundant number, since it is smaller than the sum of its proper divisors (46315605488).

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

30146250640 is a wasteful number, since it uses less digits than its factorization.

30146250640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34257127 (or 34257121 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 30146250640 in words is "thirty billion, one hundred forty-six million, two hundred fifty thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 11 16 20 22 40 44 55 80 88 110 176 220 440 880 34257103 68514206 137028412 171285515 274056824 342571030 376828133 548113648 685142060 753656266 1370284120 1507312532 1884140665 2740568240 3014625064 3768281330 6029250128 7536562660 15073125320 30146250640