Search a number
-
+
2122012130 = 25724330637
BaseRepresentation
bin111111001111011…
…0101010111100010
312110212221101101212
41332132311113202
513321213342010
6550322030122
7103404543200
oct17636652742
95425841355
102122012130
11999903137
124b27a8342
1327a8270a4
14161b7a070
15c6464505
hex7e7b55e2

2122012130 has 24 divisors (see below), whose sum is σ = 4443234588. Its totient is φ = 727546848.

The previous prime is 2122012111. The next prime is 2122012133. The reversal of 2122012130 is 312102212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1700490169 + 421521961 = 41237^2 + 20531^2 .

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2122012133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2164829 + ... + 2165808.

Almost surely, 22122012130 is an apocalyptic number.

2122012130 is an abundant number, since it is smaller than the sum of its proper divisors (2321222458).

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

2122012130 is a wasteful number, since it uses less digits than its factorization.

2122012130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4330658 (or 4330651 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2122012130 is about 46065.3028862288. The cubic root of 2122012130 is about 1285.0379515102.

Adding to 2122012130 its reverse (312102212), we get a palindrome (2434114342).

The spelling of 2122012130 in words is "two billion, one hundred twenty-two million, twelve thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 4330637 8661274 21653185 30314459 43306370 60628918 151572295 212201213 303144590 424402426 1061006065 2122012130