Search a number
-
+
230671701 = 32131971553
BaseRepresentation
bin11011011111111…
…00010101010101
3121002001100002100
431233330111111
5433022443301
634520032313
75500451151
oct1557742525
9532040070
10230671701
11109232077
1265302699
1338a35c40
14228c8061
15153b7286
hexdbfc555

230671701 has 12 divisors (see below), whose sum is σ = 358822828. Its totient is φ = 141951744.

The previous prime is 230671697. The next prime is 230671711. The reversal of 230671701 is 107176032.

It can be written as a sum of positive squares in 2 ways, for example, as 95531076 + 135140625 = 9774^2 + 11625^2 .

It is not a de Polignac number, because 230671701 - 22 = 230671697 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230671711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 985660 + ... + 985893.

Almost surely, 2230671701 is an apocalyptic number.

It is an amenable number.

230671701 is a deficient number, since it is larger than the sum of its proper divisors (128151127).

230671701 is a wasteful number, since it uses less digits than its factorization.

230671701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1971572 (or 1971569 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 230671701 is about 15187.8800693184. The cubic root of 230671701 is about 613.2884316202.

The spelling of 230671701 in words is "two hundred thirty million, six hundred seventy-one thousand, seven hundred one".

Divisors: 1 3 9 13 39 117 1971553 5914659 17743977 25630189 76890567 230671701