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230121201 = 3661116047
BaseRepresentation
bin11011011011101…
…01111011110001
3121001000100221110
431231311323301
5432402334301
634500143533
75462666202
oct1555657361
9531010843
10230121201
11108996512
1265097ba9
13388a24bb
14227c35a9
15153090d6
hexdb75ef1

230121201 has 8 divisors (see below), whose sum is σ = 307295104. Its totient is φ = 153180720.

The previous prime is 230121191. The next prime is 230121209. The reversal of 230121201 is 102121032.

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

It is not a de Polignac number, because 230121201 - 25 = 230121169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230121209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56041 + ... + 60006.

It is an arithmetic number, because the mean of its divisors is an integer number (38411888).

Almost surely, 2230121201 is an apocalyptic number.

It is an amenable number.

230121201 is a deficient number, since it is larger than the sum of its proper divisors (77173903).

230121201 is a wasteful number, since it uses less digits than its factorization.

230121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116711.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 230121201 is about 15169.7462404616. The cubic root of 230121201 is about 612.8001702936.

Adding to 230121201 its reverse (102121032), we get a palindrome (332242233).

The spelling of 230121201 in words is "two hundred thirty million, one hundred twenty-one thousand, two hundred one".

Divisors: 1 3 661 1983 116047 348141 76707067 230121201