Search a number
-
+
231787719387368 = 23414342533864139
BaseRepresentation
bin110100101100111101001000…
…101011010110100011101000
31010101200200121200202020000022
4310230331020223112203220
5220340102222130343433
62140545450331300012
766552052523046524
oct6454751053264350
91111620550666008
10231787719387368
116794468a99aa51
1221bb601a2aa608
139c4464660b321
14413482a796d84
151bbe4e56c1698
hexd2cf48ad68e8

231787719387368 has 64 divisors (see below), whose sum is σ = 455662789243200. Its totient is φ = 110411715294720.

The previous prime is 231787719387241. The next prime is 231787719387383. The reversal of 231787719387368 is 863783917787132.

231787719387368 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 231787719387292 and 231787719387301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58052243 + ... + 61916381.

It is an arithmetic number, because the mean of its divisors is an integer number (7119731081925).

Almost surely, 2231787719387368 is an apocalyptic number.

It is an amenable number.

231787719387368 is a deficient number, since it is larger than the sum of its proper divisors (223875069855832).

231787719387368 is a wasteful number, since it uses less digits than its factorization.

231787719387368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3868482 (or 3868478 counting only the distinct ones).

The product of its digits is 3584673792, while the sum is 80.

The spelling of 231787719387368 in words is "two hundred thirty-one trillion, seven hundred eighty-seven billion, seven hundred nineteen million, three hundred eighty-seven thousand, three hundred sixty-eight".

Divisors: 1 2 4 8 41 43 82 86 164 172 328 344 1763 3526 4253 7052 8506 14104 17012 34024 174373 182879 348746 365758 697492 731516 1394984 1463032 3864139 7498039 7728278 14996078 15456556 29992156 30913112 59984312 158429699 166157977 316859398 332315954 633718796 664631908 1267437592 1329263816 6812477057 13624954114 16434183167 27249908228 32868366334 54499816456 65736732668 131473465336 673801509847 706669876181 1347603019694 1413339752362 2695206039388 2826679504724 5390412078776 5653359009448 28973464923421 57946929846842 115893859693684 231787719387368