Search a number
-
+
30020231202 = 23135923327997
BaseRepresentation
bin11011111101010110…
…000110000000100010
32212111011100202100220
4123331112012000202
5442440134344302
621442513423510
72111633516643
oct337526060042
985434322326
1030020231202
1111805702035
12599986ab96
132aa5629820
14164add36ca
15baa7c34bc
hex6fd586022

30020231202 has 64 divisors (see below), whose sum is σ = 66039442560. Its totient is φ = 9041140224.

The previous prime is 30020231191. The next prime is 30020231207. The reversal of 30020231202 is 20213202003.

It is not an unprimeable number, because it can be changed into a prime (30020231207) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1058268 + ... + 1086264.

It is an arithmetic number, because the mean of its divisors is an integer number (1031866290).

Almost surely, 230020231202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30020231202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33019721280).

30020231202 is an abundant number, since it is smaller than the sum of its proper divisors (36019211358).

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

30020231202 is a wasteful number, since it uses less digits than its factorization.

30020231202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28307.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 30020231202 its reverse (20213202003), we get a palindrome (50233433205).

The spelling of 30020231202 in words is "thirty billion, twenty million, two hundred thirty-one thousand, two hundred two".

Divisors: 1 2 3 6 13 26 39 59 78 118 177 233 354 466 699 767 1398 1534 2301 3029 4602 6058 9087 13747 18174 27494 27997 41241 55994 82482 83991 167982 178711 357422 363961 536133 727922 1072266 1091883 1651823 2183766 3303646 4955469 6523301 9910938 13046602 19569903 21473699 39139806 42947398 64421097 84802913 128842194 169605826 254408739 384874759 508817478 769749518 1154624277 2309248554 5003371867 10006743734 15010115601 30020231202