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201231002 = 27232292729
BaseRepresentation
bin10111111111010…
…00101010011010
3112000122121001002
423333220222122
5403003343002
631545025002
74662302210
oct1377505232
9460577032
10201231002
11a3653915
1257485162
13328c86cb
141ca22cb0
15129ee002
hexbfe8a9a

201231002 has 32 divisors (see below), whose sum is σ = 361670400. Its totient is φ = 82101888.

The previous prime is 201231001. The next prime is 201231007. The reversal of 201231002 is 200132102.

Adding to 201231002 its reverse (200132102), we get a palindrome (401363104).

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (201231001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72374 + ... + 75102.

It is an arithmetic number, because the mean of its divisors is an integer number (11302200).

Almost surely, 2201231002 is an apocalyptic number.

201231002 is a deficient number, since it is larger than the sum of its proper divisors (160439398).

201231002 is a wasteful number, since it uses less digits than its factorization.

201231002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2990.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 201231002 is about 14185.5913517907. The cubic root of 201231002 is about 586.0009182776. Note that the first 3 decimals are identical.

The spelling of 201231002 in words is "two hundred one million, two hundred thirty-one thousand, two".

Divisors: 1 2 7 14 23 46 161 229 322 458 1603 2729 3206 5267 5458 10534 19103 36869 38206 62767 73738 125534 439369 624941 878738 1249882 4374587 8749174 14373643 28747286 100615501 201231002