Search a number
-
+
12010231020 = 2235200170517
BaseRepresentation
bin10110010111101110…
…11001010011101100
31011000000100221200010
423023313121103230
5144044104343040
65303432533220
7603424164534
oct131367312354
934000327603
1012010231020
11510350a367
1223b2251210
131195307598
1481d1224c4
154a45e1e80
hex2cbdd94ec

12010231020 has 24 divisors (see below), whose sum is σ = 33628647024. Its totient is φ = 3202728256.

The previous prime is 12010231007. The next prime is 12010231027. The reversal of 12010231020 is 2013201021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 12010230987 and 12010231005.

It is not an unprimeable number, because it can be changed into a prime (12010231027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100085199 + ... + 100085318.

It is an arithmetic number, because the mean of its divisors is an integer number (1401193626).

Almost surely, 212010231020 is an apocalyptic number.

12010231020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12010231020 is an abundant number, since it is smaller than the sum of its proper divisors (21618416004).

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

12010231020 is a wasteful number, since it uses less digits than its factorization.

12010231020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200170529 (or 200170527 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 12010231020 its reverse (2013201021), we get a palindrome (14023432041).

The spelling of 12010231020 in words is "twelve billion, ten million, two hundred thirty-one thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 200170517 400341034 600511551 800682068 1000852585 1201023102 2001705170 2402046204 3002557755 4003410340 6005115510 12010231020