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1232310020 = 22589692309
BaseRepresentation
bin100100101110011…
…1000111100000100
310011212210211112212
41021130320330010
510010432410040
6322140402552
742352314404
oct11134707404
93155724485
101232310020
11582674837
122a4846458
131683c7a36
14b9940804
15732bdd65
hex49738f04

1232310020 has 24 divisors (see below), whose sum is σ = 2616931800. Its totient is φ = 487384832.

The previous prime is 1232310017. The next prime is 1232310041. The reversal of 1232310020 is 200132321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 42198016 + 1190112004 = 6496^2 + 34498^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1232309977 and 1232310004.

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, 344375 + ... + 347934.

It is an arithmetic number, because the mean of its divisors is an integer number (109038825).

Almost surely, 21232310020 is an apocalyptic number.

1232310020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232310020 is an abundant number, since it is smaller than the sum of its proper divisors (1384621780).

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

1232310020 is a wasteful number, since it uses less digits than its factorization.

1232310020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692407 (or 692405 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1232310020 is about 35104.2735290164. The cubic root of 1232310020 is about 1072.1115956910. Note that the first 3 decimals are identical.

Adding to 1232310020 its reverse (200132321), we get a palindrome (1432442341).

The spelling of 1232310020 in words is "one billion, two hundred thirty-two million, three hundred ten thousand, twenty".

Divisors: 1 2 4 5 10 20 89 178 356 445 890 1780 692309 1384618 2769236 3461545 6923090 13846180 61615501 123231002 246462004 308077505 616155010 1232310020