Search a number
-
+
30101212120 = 2357107504329
BaseRepresentation
bin11100000010001011…
…000000101111011000
32212200210202000022011
4130002023000233120
5443121402241440
621454525235304
72113636036630
oct340213005730
985623660264
1030101212120
1111847393211
125a00a02b34
132ab9341525
141657a736c0
15bb296c9ea
hex7022c0bd8

30101212120 has 32 divisors (see below), whose sum is σ = 77403117600. Its totient is φ = 10320415488.

The previous prime is 30101212111. The next prime is 30101212151. The reversal of 30101212120 is 2121210103.

It is a self number, because there is not a number n which added to its sum of digits gives 30101212120.

It is a congruent number.

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, 53751885 + ... + 53752444.

It is an arithmetic number, because the mean of its divisors is an integer number (2418847425).

Almost surely, 230101212120 is an apocalyptic number.

It is an amenable number.

30101212120 is an abundant number, since it is smaller than the sum of its proper divisors (47301905480).

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

30101212120 is a wasteful number, since it uses less digits than its factorization.

30101212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107504347 (or 107504343 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 30101212120 its reverse (2121210103), we get a palindrome (32222422223).

The spelling of 30101212120 in words is "thirty billion, one hundred one million, two hundred twelve thousand, one hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 107504329 215008658 430017316 537521645 752530303 860034632 1075043290 1505060606 2150086580 3010121212 3762651515 4300173160 6020242424 7525303030 15050606060 30101212120