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231223412022 = 23372311450691
BaseRepresentation
bin1101011101010111111…
…1010100010100110110
3211002211100122100122220
43113111333110110312
512242021143141042
6254120024103210
722463634400521
oct3272577242466
9732740570586
10231223412022
118a074651849
1238990304b06
1318a5bcb4bc5
14b296bd1bb8
1560346b08ec
hex35d5fd4536

231223412022 has 32 divisors (see below), whose sum is σ = 475151956224. Its totient is φ = 74958760800.

The previous prime is 231223411973. The next prime is 231223412089. The reversal of 231223412022 is 220214322132.

It is a junction number, because it is equal to n+sod(n) for n = 231223411983 and 231223412001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 287697 + ... + 738387.

It is an arithmetic number, because the mean of its divisors is an integer number (14848498632).

Almost surely, 2231223412022 is an apocalyptic number.

231223412022 is an abundant number, since it is smaller than the sum of its proper divisors (243928544202).

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

231223412022 is a wasteful number, since it uses less digits than its factorization.

231223412022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453044.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 231223412022 its reverse (220214322132), we get a palindrome (451437734154).

The spelling of 231223412022 in words is "two hundred thirty-one billion, two hundred twenty-three million, four hundred twelve thousand, twenty-two".

Divisors: 1 2 3 6 37 74 111 222 2311 4622 6933 13866 85507 171014 256521 450691 513042 901382 1352073 2704146 16675567 33351134 50026701 100053402 1041546901 2083093802 3124640703 6249281406 38537235337 77074470674 115611706011 231223412022