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13922541 = 321790997
BaseRepresentation
bin110101000111…
…000011101101
3222012100010200
4311013003231
512031010131
61214224113
7226224333
oct65070355
928170120
1013922541
11794a236
1247b5039
132b660b9
141bc5b53
1513502e6
hexd470ed

13922541 has 12 divisors (see below), whose sum is σ = 21293532. Its totient is φ = 8735616.

The previous prime is 13922539. The next prime is 13922543. The reversal of 13922541 is 14522931.

It is an interprime number because it is at equal distance from previous prime (13922539) and next prime (13922543).

It can be written as a sum of positive squares in 2 ways, for example, as 4796100 + 9126441 = 2190^2 + 3021^2 .

It is not a de Polignac number, because 13922541 - 21 = 13922539 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13922543) 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, 45346 + ... + 45651.

It is an arithmetic number, because the mean of its divisors is an integer number (1774461).

Almost surely, 213922541 is an apocalyptic number.

It is an amenable number.

13922541 is a deficient number, since it is larger than the sum of its proper divisors (7370991).

13922541 is a wasteful number, since it uses less digits than its factorization.

13922541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91020 (or 91017 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 13922541 is about 3731.2921354405. The cubic root of 13922541 is about 240.5689107700.

The spelling of 13922541 in words is "thirteen million, nine hundred twenty-two thousand, five hundred forty-one".

Divisors: 1 3 9 17 51 153 90997 272991 818973 1546949 4640847 13922541