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201236493 = 3379176989
BaseRepresentation
bin10111111111010…
…10000000001101
3112000122212120110
423333222000031
5403004031433
631545110233
74662324213
oct1377520015
9460585513
10201236493
11a3657a57
1257488379
13328cb063
141ca24cb3
1512a00963
hexbfea00d

201236493 has 8 divisors (see below), whose sum is σ = 269024800. Its totient is φ = 133802928.

The previous prime is 201236473. The next prime is 201236501. The reversal of 201236493 is 394632102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201236493 - 28 = 201236237 is a prime.

It is a super-2 number, since 2×2012364932 = 80992252229878098, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201236493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201236473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87358 + ... + 89631.

It is an arithmetic number, because the mean of its divisors is an integer number (33628100).

Almost surely, 2201236493 is an apocalyptic number.

It is an amenable number.

201236493 is a deficient number, since it is larger than the sum of its proper divisors (67788307).

201236493 is a wasteful number, since it uses less digits than its factorization.

201236493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177371.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 201236493 is about 14185.7848919261. The cubic root of 201236493 is about 586.0062483075.

Adding to 201236493 its reverse (394632102), we get a palindrome (595868595).

The spelling of 201236493 in words is "two hundred one million, two hundred thirty-six thousand, four hundred ninety-three".

Divisors: 1 3 379 1137 176989 530967 67078831 201236493