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204030101 = 1134753453
BaseRepresentation
bin11000010100101…
…00000010010101
3112012220210200102
430022110002111
5404212430401
632125023445
75025140642
oct1412240225
9465823612
10204030101
11a5195920
12583b4b85
1333368792
141d150dc9
1512da356b
hexc294095

204030101 has 8 divisors (see below), whose sum is σ = 223223904. Its totient is φ = 184943920.

The previous prime is 204030089. The next prime is 204030133. The reversal of 204030101 is 101030402.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 204030101 - 226 = 136921237 is a prime.

It is a super-2 number, since 2×2040301012 = 83256564228140402, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (11).

It is a pancake number, because a pancake can be divided into 204030101 parts by 20200 straight cuts.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204030191) 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, 22910 + ... + 30543.

It is an arithmetic number, because the mean of its divisors is an integer number (27902988).

Almost surely, 2204030101 is an apocalyptic number.

It is an amenable number.

204030101 is a deficient number, since it is larger than the sum of its proper divisors (19193803).

204030101 is a wasteful number, since it uses less digits than its factorization.

204030101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53811.

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

The square root of 204030101 is about 14283.9105639877. The cubic root of 204030101 is about 588.7054841080.

Adding to 204030101 its reverse (101030402), we get a palindrome (305060503).

The spelling of 204030101 in words is "two hundred four million, thirty thousand, one hundred one".

Divisors: 1 11 347 3817 53453 587983 18548191 204030101