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230217701 = 71091811667
BaseRepresentation
bin11011011100011…
…01011111100101
3121001012021022112
431232031133211
5432413431301
634502210405
75463550430
oct1556153745
9531167275
10230217701
11108a51a6a
1265123a05
13389073bc
142280a817
15153279bb
hexdb8d7e5

230217701 has 16 divisors (see below), whose sum is σ = 267146880. Its totient is φ = 194322240.

The previous prime is 230217643. The next prime is 230217719. The reversal of 230217701 is 107712032.

It is a de Polignac number, because none of the positive numbers 2k-230217701 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230217731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137270 + ... + 138936.

It is an arithmetic number, because the mean of its divisors is an integer number (16696680).

Almost surely, 2230217701 is an apocalyptic number.

It is an amenable number.

230217701 is a deficient number, since it is larger than the sum of its proper divisors (36929179).

230217701 is a wasteful number, since it uses less digits than its factorization.

230217701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1964.

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 230217701 is about 15172.9265799318. The cubic root of 230217701 is about 612.8858163968.

Adding to 230217701 its reverse (107712032), we get a palindrome (337929733).

The spelling of 230217701 in words is "two hundred thirty million, two hundred seventeen thousand, seven hundred one".

Divisors: 1 7 109 181 763 1267 1667 11669 19729 138103 181703 301727 1271921 2112089 32888243 230217701