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22323401 = 173129037
BaseRepresentation
bin101010100101…
…0000011001001
31120000010221122
41111022003021
521203322101
62114245025
7360513542
oct125120311
946003848
1022323401
11116679a1
127586775
134817b19
142d714c9
151e5e51b
hex154a0c9

22323401 has 4 divisors (see below), whose sum is σ = 22452612. Its totient is φ = 22194192.

The previous prime is 22323383. The next prime is 22323403. The reversal of 22323401 is 10432322.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20070400 + 2253001 = 4480^2 + 1501^2 .

It is a cyclic number.

It is not a de Polignac number, because 22323401 - 26 = 22323337 is a prime.

It is a super-3 number, since 3×223234013 (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22323401.

It is not an unprimeable number, because it can be changed into a prime (22323403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64346 + ... + 64691.

It is an arithmetic number, because the mean of its divisors is an integer number (5613153).

Almost surely, 222323401 is an apocalyptic number.

It is an amenable number.

22323401 is a deficient number, since it is larger than the sum of its proper divisors (129211).

22323401 is a wasteful number, since it uses less digits than its factorization.

22323401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129210.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 22323401 is about 4724.7646502233. The cubic root of 22323401 is about 281.5702632557.

Adding to 22323401 its reverse (10432322), we get a palindrome (32755723).

The spelling of 22323401 in words is "twenty-two million, three hundred twenty-three thousand, four hundred one".

Divisors: 1 173 129037 22323401