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23422045 = 515729837
BaseRepresentation
bin101100101011…
…0010001011101
31122001222000011
41121112101131
521444001140
62154003221
7403040563
oct131262135
948058004
1023422045
1112248369
127a16511
134b10bca
143179a33
1520c9cea
hex165645d

23422045 has 8 divisors (see below), whose sum is σ = 28286424. Its totient is φ = 18617664.

The previous prime is 23422043. The next prime is 23422093. The reversal of 23422045 is 54022432.

It can be written as a sum of positive squares in 4 ways, for example, as 131769 + 23290276 = 363^2 + 4826^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23422045 - 21 = 23422043 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23422043) 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 7 ways as a sum of consecutive naturals, for example, 14134 + ... + 15703.

It is an arithmetic number, because the mean of its divisors is an integer number (3535803).

Almost surely, 223422045 is an apocalyptic number.

It is an amenable number.

23422045 is a deficient number, since it is larger than the sum of its proper divisors (4864379).

23422045 is a wasteful number, since it uses less digits than its factorization.

23422045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29999.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 23422045 is about 4839.6327339996. The cubic root of 23422045 is about 286.1156434873.

Adding to 23422045 its reverse (54022432), we get a palindrome (77444477).

The spelling of 23422045 in words is "twenty-three million, four hundred twenty-two thousand, forty-five".

Divisors: 1 5 157 785 29837 149185 4684409 23422045