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201315241 = 17194789149
BaseRepresentation
bin10111111111111…
…01001110101001
3112000210212121001
423333331032221
5403014041431
631550515001
74663102621
oct1377751651
9460725531
10201315241
11a3701136
1257505a61
1332927b5a
141ca45881
1512a18e61
hexbffd3a9

201315241 has 32 divisors (see below), whose sum is σ = 233280000. Its totient is φ = 172541952.

The previous prime is 201315227. The next prime is 201315287. The reversal of 201315241 is 142513102.

It is a cyclic number.

It is not a de Polignac number, because 201315241 - 211 = 201313193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201315841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1351035 + ... + 1351183.

It is an arithmetic number, because the mean of its divisors is an integer number (7290000).

Almost surely, 2201315241 is an apocalyptic number.

It is an amenable number.

201315241 is a deficient number, since it is larger than the sum of its proper divisors (31964759).

201315241 is a wasteful number, since it uses less digits than its factorization.

201315241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 201315241 is about 14188.5602158922. The cubic root of 201315241 is about 586.0826771255.

Adding to 201315241 its reverse (142513102), we get a palindrome (343828343).

The spelling of 201315241 in words is "two hundred one million, three hundred fifteen thousand, two hundred forty-one".

Divisors: 1 17 19 47 89 149 323 799 893 1513 1691 2533 2831 4183 7003 13261 15181 28747 48127 71111 79477 119051 133057 225437 251959 623267 1351109 2261969 4283303 10595539 11842073 201315241