Search a number
-
+
30500450340 = 22351926754781
BaseRepresentation
bin11100011001111101…
…111111000000100100
32220201121222102011220
4130121331333000210
5444431103402330
622002310300340
72126554356513
oct343175770044
986647872156
1030500450340
1111a31788858
125ab26576b0
132b50c77169
141694aba67a
15bd7a30710
hex719f7f024

30500450340 has 48 divisors (see below), whose sum is σ = 89896067520. Its totient is φ = 7705376640.

The previous prime is 30500450339. The next prime is 30500450377. The reversal of 30500450340 is 4305400503.

It is a happy number.

It is a super-2 number, since 2×305004503402 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30500450340.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13376251 + ... + 13378530.

It is an arithmetic number, because the mean of its divisors is an integer number (1872834740).

Almost surely, 230500450340 is an apocalyptic number.

30500450340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30500450340 is an abundant number, since it is smaller than the sum of its proper divisors (59395617180).

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

30500450340 is a wasteful number, since it uses less digits than its factorization.

30500450340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26754812 (or 26754810 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

Adding to 30500450340 its reverse (4305400503), we get a palindrome (34805850843).

The spelling of 30500450340 in words is "thirty billion, five hundred million, four hundred fifty thousand, three hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 19 20 30 38 57 60 76 95 114 190 228 285 380 570 1140 26754781 53509562 80264343 107019124 133773905 160528686 267547810 321057372 401321715 508340839 535095620 802643430 1016681678 1525022517 1605286860 2033363356 2541704195 3050045034 5083408390 6100090068 7625112585 10166816780 15250225170 30500450340