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40223853 = 3217262901
BaseRepresentation
bin1001100101110…
…0010001101101
32210200120202100
42121130101231
540244130403
63554045313
7665616465
oct231342155
983616670
1040223853
112078385a
1211579839
1384446c7
1454b0ba5
1537e82a3
hex265c46d

40223853 has 12 divisors (see below), whose sum is σ = 61519068. Its totient is φ = 25238400.

The previous prime is 40223851. The next prime is 40223857. The reversal of 40223853 is 35832204.

40223853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 29452329 + 10771524 = 5427^2 + 3282^2 .

It is not a de Polignac number, because 40223853 - 21 = 40223851 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40223851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131298 + ... + 131603.

It is an arithmetic number, because the mean of its divisors is an integer number (5126589).

Almost surely, 240223853 is an apocalyptic number.

It is an amenable number.

40223853 is a deficient number, since it is larger than the sum of its proper divisors (21295215).

40223853 is a wasteful number, since it uses less digits than its factorization.

40223853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262924 (or 262921 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 40223853 is about 6342.2277631760. The cubic root of 40223853 is about 342.6319749980.

It can be divided in two parts, 4022 and 3853, that added together give a triangular number (7875 = T125).

The spelling of 40223853 in words is "forty million, two hundred twenty-three thousand, eight hundred fifty-three".

Divisors: 1 3 9 17 51 153 262901 788703 2366109 4469317 13407951 40223853