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12201401 = 191135683
BaseRepresentation
bin101110100010…
…110110111001
3211221220011202
4232202312321
511110421101
61113303545
7205465412
oct56426671
924856152
1012201401
116984103
124104bb5
1326b2884
141898809
15111036b
hexba2db9

12201401 has 8 divisors (see below), whose sum is σ = 12959520. Its totient is φ = 11454912.

The previous prime is 12201367. The next prime is 12201407. The reversal of 12201401 is 10410221.

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 12201401 - 26 = 12201337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12201407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 695 + ... + 4988.

It is an arithmetic number, because the mean of its divisors is an integer number (1619940).

Almost surely, 212201401 is an apocalyptic number.

It is an amenable number.

12201401 is a deficient number, since it is larger than the sum of its proper divisors (758119).

12201401 is a wasteful number, since it uses less digits than its factorization.

12201401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5815.

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

The square root of 12201401 is about 3493.0503861239. The cubic root of 12201401 is about 230.2165635098.

Adding to 12201401 its reverse (10410221), we get a palindrome (22611622).

The spelling of 12201401 in words is "twelve million, two hundred one thousand, four hundred one".

Divisors: 1 19 113 2147 5683 107977 642179 12201401