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231201006 = 23192173617
BaseRepresentation
bin11011100011111…
…01100011101110
3121010001020011020
431301331203232
5433141413011
634535235010
75505114261
oct1561754356
9533036136
10231201006
11109563813
1265518a66
1338b8cb3a
14229c4cd8
151546e006
hexdc7d8ee

231201006 has 48 divisors (see below), whose sum is σ = 491636304. Its totient is φ = 72471168.

The previous prime is 231200971. The next prime is 231201011. The reversal of 231201006 is 600102132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 374410 + ... + 375026.

It is an arithmetic number, because the mean of its divisors is an integer number (10242423).

Almost surely, 2231201006 is an apocalyptic number.

231201006 is an abundant number, since it is smaller than the sum of its proper divisors (260435298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231201006 is a wasteful number, since it uses less digits than its factorization.

231201006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833 (or 814 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 231201006 is about 15205.2953276153. The cubic root of 231201006 is about 613.7571622256.

Adding to 231201006 its reverse (600102132), we get a palindrome (831303138).

The spelling of 231201006 in words is "two hundred thirty-one million, two hundred one thousand, six".

Divisors: 1 2 3 6 19 38 57 114 173 346 361 519 617 722 1038 1083 1234 1851 2166 3287 3702 6574 9861 11723 19722 23446 35169 62453 70338 106741 124906 187359 213482 222737 320223 374718 445474 640446 668211 1336422 2028079 4056158 6084237 12168474 38533501 77067002 115600503 231201006