Search a number
-
+
2021232012 = 2231312575003
BaseRepresentation
bin111100001111001…
…1000110110001100
312012212022020001220
41320132120312030
513114413411022
6532322003340
7101042121462
oct17036306614
95185266056
102021232012
11947a29588
12484aa6550
1326299c497
14152624832
15bc6a885c
hex78798d8c

2021232012 has 48 divisors (see below), whose sum is σ = 4771654272. Its totient is φ = 665866240.

The previous prime is 2021232001. The next prime is 2021232013. The reversal of 2021232012 is 2102321202.

It is a happy number.

2021232012 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2021231982 and 2021232000.

It is not an unprimeable number, because it can be changed into a prime (2021232013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 401503 + ... + 406505.

It is an arithmetic number, because the mean of its divisors is an integer number (99409464).

Almost surely, 22021232012 is an apocalyptic number.

It is an amenable number.

2021232012 is an abundant number, since it is smaller than the sum of its proper divisors (2750422260).

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

2021232012 is a wasteful number, since it uses less digits than its factorization.

2021232012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5398 (or 5396 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2021232012 is about 44958.1139728970. The cubic root of 2021232012 is about 1264.3638084791.

Adding to 2021232012 its reverse (2102321202), we get a palindrome (4123553214).

The spelling of 2021232012 in words is "two billion, twenty-one million, two hundred thirty-two thousand, twelve".

Divisors: 1 2 3 4 6 12 131 257 262 393 514 524 771 786 1028 1542 1572 3084 5003 10006 15009 20012 30018 33667 60036 67334 101001 134668 202002 404004 655393 1285771 1310786 1966179 2571542 2621572 3857313 3932358 5143084 7714626 7864716 15429252 168436001 336872002 505308003 673744004 1010616006 2021232012