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201200013 = 32731711451
BaseRepresentation
bin10111111111000…
…01000110001101
3112000121000112100
423333201012031
5403001400023
631544225313
74662112650
oct1377410615
9460530470
10201200013
11a3632603
125746b239
13328b7581
141ca15897
15129e4c43
hexbfe118d

201200013 has 48 divisors (see below), whose sum is σ = 347922432. Its totient is φ = 109620000.

The previous prime is 201200009. The next prime is 201200017. The reversal of 201200013 is 310002102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (201200009) and next prime (201200017).

It is not a de Polignac number, because 201200013 - 22 = 201200009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 201199968 and 201200004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201200017) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 137938 + ... + 139388.

It is an arithmetic number, because the mean of its divisors is an integer number (7248384).

Almost surely, 2201200013 is an apocalyptic number.

It is an amenable number.

201200013 is a deficient number, since it is larger than the sum of its proper divisors (146722419).

201200013 is a wasteful number, since it uses less digits than its factorization.

201200013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1566 (or 1563 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 201200013 is about 14184.4990394444. The cubic root of 201200013 is about 585.9708359103.

Adding to 201200013 its reverse (310002102), we get a palindrome (511202115).

The spelling of 201200013 in words is "two hundred one million, two hundred thousand, thirteen".

Divisors: 1 3 7 9 21 31 63 71 93 213 217 279 497 639 651 1451 1491 1953 2201 4353 4473 6603 10157 13059 15407 19809 30471 44981 46221 91413 103021 134943 138663 309063 314867 404829 721147 927189 944601 2163441 2833803 3193651 6490323 9580953 22355557 28742859 67066671 201200013