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22401101 = 139161159
BaseRepresentation
bin101010101110…
…1000001001101
31120011002112102
41111131001031
521213313401
62120044445
7361256222
oct125350115
946132472
1022401101
1111710308
127603725
1348442b8
142d91949
151e7756b
hex155d04d

22401101 has 4 divisors (see below), whose sum is σ = 22562400. Its totient is φ = 22239804.

The previous prime is 22401089. The next prime is 22401109. The reversal of 22401101 is 10110422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22401101 - 26 = 22401037 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 (22401109) 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, 80441 + ... + 80718.

It is an arithmetic number, because the mean of its divisors is an integer number (5640600).

Almost surely, 222401101 is an apocalyptic number.

It is an amenable number.

22401101 is a deficient number, since it is larger than the sum of its proper divisors (161299).

22401101 is a wasteful number, since it uses less digits than its factorization.

22401101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161298.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 22401101 is about 4732.9801394048. The cubic root of 22401101 is about 281.8965677045.

Adding to 22401101 its reverse (10110422), we get a palindrome (32511523).

The spelling of 22401101 in words is "twenty-two million, four hundred one thousand, one hundred one".

Divisors: 1 139 161159 22401101