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231323223000222 = 2353712864154321
BaseRepresentation
bin110100100110001100100010…
…100010010000010010011110
31010100001021200010211220200000
4310212030202202100102132
5220304444430042001342
62135552231021515130
766503360052645423
oct6446144242202236
91110037603756600
10231323223000222
116778569a888361
1221b3bba7412aa6
139c0c8bcb328c2
14411a1648d5d4a
151bb23ab94c44c
hexd2632289049e

231323223000222 has 48 divisors (see below), whose sum is σ = 533810947745712. Its totient is φ = 75023747994240.

The previous prime is 231323223000173. The next prime is 231323223000223. The reversal of 231323223000222 is 222000322323132.

231323223000222 is a `hidden beast` number, since 2 + 3 + 1 + 32 + 322 + 300 + 0 + 2 + 2 + 2 = 666.

It is a super-2 number, since 2×2313232230002222 (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231323223000223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6432059179 + ... + 6432095142.

It is an arithmetic number, because the mean of its divisors is an integer number (11121061411369).

Almost surely, 2231323223000222 is an apocalyptic number.

231323223000222 is an abundant number, since it is smaller than the sum of its proper divisors (302487724745490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231323223000222 is a wasteful number, since it uses less digits than its factorization.

231323223000222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12864154375 (or 12864154363 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 231323223000222 its reverse (222000322323132), we get a palindrome (453323545323354).

It can be divided in two parts, 23132322 and 3000222, that added together give a square (26132544 = 51122).

The spelling of 231323223000222 in words is "two hundred thirty-one trillion, three hundred twenty-three billion, two hundred twenty-three million, two hundred twenty-two", and thus it is an aban number.

Divisors: 1 2 3 6 9 18 27 37 54 74 81 111 162 222 243 333 486 666 999 1998 2997 5994 8991 17982 12864154321 25728308642 38592462963 77184925926 115777388889 231554777778 347332166667 475973709877 694664333334 951947419754 1041996500001 1427921129631 2083993000002 2855842259262 3125989500003 4283763388893 6251979000006 8567526777786 12851290166679 25702580333358 38553870500037 77107741000074 115661611500111 231323223000222