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231433601 = 7294872341
BaseRepresentation
bin11011100101101…
…10010110000001
3121010111001012212
431302312112001
5433221333401
634544231505
75510103350
oct1562662601
9533431185
10231433601
11109702543
126560b595
1338c41979
1422a45997
15154b7dbb
hexdcb6581

231433601 has 16 divisors (see below), whose sum is σ = 274295040. Its totient is φ = 191056320.

The previous prime is 231433591. The next prime is 231433603. The reversal of 231433601 is 106334132.

231433601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231433601 - 214 = 231417217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231433603) 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, 97691 + ... + 100031.

It is an arithmetic number, because the mean of its divisors is an integer number (17143440).

Almost surely, 2231433601 is an apocalyptic number.

It is an amenable number.

231433601 is a deficient number, since it is larger than the sum of its proper divisors (42861439).

231433601 is a wasteful number, since it uses less digits than its factorization.

231433601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2864.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 231433601 is about 15212.9418916921. The cubic root of 231433601 is about 613.9629124857.

Adding to 231433601 its reverse (106334132), we get a palindrome (337767733).

The spelling of 231433601 in words is "two hundred thirty-one million, four hundred thirty-three thousand, six hundred one".

Divisors: 1 7 29 203 487 2341 3409 14123 16387 67889 98861 475223 1140067 7980469 33061943 231433601