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16201413 = 321800157
BaseRepresentation
bin111101110011…
…011011000101
31010111010011100
4331303123011
513121421123
61335130313
7254465304
oct75633305
933433140
1016201413
1191663a8
125513999
133483447
14221a43b
151650643
hexf736c5

16201413 has 6 divisors (see below), whose sum is σ = 23402054. Its totient is φ = 10800936.

The previous prime is 16201397. The next prime is 16201421. The reversal of 16201413 is 31410261.

It is a happy number.

16201413 is a `hidden beast` number, since 1 + 620 + 1 + 41 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9941409 + 6260004 = 3153^2 + 2502^2 .

It is not a de Polignac number, because 16201413 - 24 = 16201397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16201463) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 900070 + ... + 900087.

Almost surely, 216201413 is an apocalyptic number.

It is an amenable number.

16201413 is a deficient number, since it is larger than the sum of its proper divisors (7200641).

16201413 is a wasteful number, since it uses less digits than its factorization.

16201413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1800163 (or 1800160 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 16201413 is about 4025.0978870085. The cubic root of 16201413 is about 253.0371559838.

Adding to 16201413 its reverse (31410261), we get a palindrome (47611674).

The spelling of 16201413 in words is "sixteen million, two hundred one thousand, four hundred thirteen".

Divisors: 1 3 9 1800157 5400471 16201413