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2023144436 = 222221227729
BaseRepresentation
bin111100010010110…
…1011101111110100
312012222220101102102
41320211223233310
513120411110221
6532431001232
7101064305165
oct17045535764
95188811372
102023144436
119490153a5
12485669218
132631bbab1
141529a176c
15bc93530b
hex7896bbf4

2023144436 has 12 divisors (see below), whose sum is σ = 3542112420. Its totient is φ = 1011112320.

The previous prime is 2023144421. The next prime is 2023144439. The reversal of 2023144436 is 6344413202.

It can be written as a sum of positive squares in 2 ways, for example, as 1432168336 + 590976100 = 37844^2 + 24310^2 .

It is a super-2 number, since 2×20231444362 = 8186226817835516192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2023144399 and 2023144408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2023144439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104981 + ... + 122748.

It is an arithmetic number, because the mean of its divisors is an integer number (295176035).

Almost surely, 22023144436 is an apocalyptic number.

It is an amenable number.

2023144436 is a deficient number, since it is larger than the sum of its proper divisors (1518967984).

2023144436 is a wasteful number, since it uses less digits than its factorization.

2023144436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229954 (or 229952 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 2023144436 is about 44979.3778969874. The cubic root of 2023144436 is about 1264.7624494182.

Adding to 2023144436 its reverse (6344413202), we get a palindrome (8367557638).

The spelling of 2023144436 in words is "two billion, twenty-three million, one hundred forty-four thousand, four hundred thirty-six".

Divisors: 1 2 4 2221 4442 8884 227729 455458 910916 505786109 1011572218 2023144436