Search a number
-
+
231795076646 = 27131607208217
BaseRepresentation
bin1101011111100000010…
…0000010111000100110
3211011022012022221002202
43113320010002320212
512244204014423041
6254252444534502
722514045433320
oct3277004027046
9734265287082
10231795076646
118a338306951
1238b0b851432
1318b2056c3b3
14b30cac0610
156069982a9b
hex35f8102e26

231795076646 has 32 divisors (see below), whose sum is σ = 401057851392. Its totient is φ = 98419538880.

The previous prime is 231795076631. The next prime is 231795076649. The reversal of 231795076646 is 646670597132.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 231795076591 and 231795076600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231795076649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1009130 + ... + 1217346.

It is an arithmetic number, because the mean of its divisors is an integer number (12533057856).

Almost surely, 2231795076646 is an apocalyptic number.

231795076646 is a deficient number, since it is larger than the sum of its proper divisors (169262774746).

231795076646 is a wasteful number, since it uses less digits than its factorization.

231795076646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208964.

The product of its (nonzero) digits is 11430720, while the sum is 56.

The spelling of 231795076646 in words is "two hundred thirty-one billion, seven hundred ninety-five million, seventy-six thousand, six hundred forty-six".

Divisors: 1 2 7 14 131 262 607 917 1214 1834 4249 8498 79517 159034 208217 416434 556619 1113238 1457519 2915038 27276427 54552854 126387719 190934989 252775438 381869978 884714033 1769428066 16556791189 33113582378 115897538323 231795076646