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231013701 = 347273923
BaseRepresentation
bin11011100010011…
…11110101000101
3121002200201020000
431301033311011
5433114414301
634531231513
75503404222
oct1561176505
9532621200
10231013701
11109446016
1265448599
1338b257c9
1422976949
1515433786
hexdc4fd45

231013701 has 20 divisors (see below), whose sum is σ = 345657312. Its totient is φ = 153758088.

The previous prime is 231013687. The next prime is 231013747. The reversal of 231013701 is 107310132.

It is not a de Polignac number, because 231013701 - 215 = 230980933 is a prime.

It is a super-3 number, since 3×2310137013 (a number of 26 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231013781) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 56926 + ... + 60848.

Almost surely, 2231013701 is an apocalyptic number.

It is an amenable number.

231013701 is a deficient number, since it is larger than the sum of its proper divisors (114643611).

231013701 is an equidigital number, since it uses as much as digits as its factorization.

231013701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4662 (or 4653 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 231013701 is about 15199.1348766961. The cubic root of 231013701 is about 613.5913745333.

Adding to 231013701 its reverse (107310132), we get a palindrome (338323833).

The spelling of 231013701 in words is "two hundred thirty-one million, thirteen thousand, seven hundred one".

Divisors: 1 3 9 27 81 727 2181 3923 6543 11769 19629 35307 58887 105921 317763 2852021 8556063 25668189 77004567 231013701