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22201404 = 2232716827
BaseRepresentation
bin101010010110…
…0010000111100
31112202221121020
41110230100330
521140421104
62111504140
7356465061
oct124542074
945687536
1022201404
1111594275
127528050
1347a4434
142d3cc68
151e382d9
hex152c43c

22201404 has 24 divisors (see below), whose sum is σ = 52002048. Its totient is φ = 7372080.

The previous prime is 22201393. The next prime is 22201409. The reversal of 22201404 is 40410222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162 + ... + 6665.

It is an arithmetic number, because the mean of its divisors is an integer number (2166752).

Almost surely, 222201404 is an apocalyptic number.

It is an amenable number.

22201404 is an abundant number, since it is smaller than the sum of its proper divisors (29800644).

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

22201404 is a wasteful number, since it uses less digits than its factorization.

22201404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7105 (or 7103 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 22201404 is about 4711.8365846027. The cubic root of 22201404 is about 281.0564004940.

Adding to 22201404 its reverse (40410222), we get a palindrome (62611626).

The spelling of 22201404 in words is "twenty-two million, two hundred one thousand, four hundred four".

Divisors: 1 2 3 4 6 12 271 542 813 1084 1626 3252 6827 13654 20481 27308 40962 81924 1850117 3700234 5550351 7400468 11100702 22201404