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2023131222 = 23375352199
BaseRepresentation
bin111100010010110…
…1000100001010110
312012222212201022000
41320211220201112
513120410144342
6532430420130
7101064221520
oct17045504126
95188781260
102023131222
11949006482
12485661646
132631b5a88
1415299aa10
15bc93144c
hex78968856

2023131222 has 32 divisors (see below), whose sum is σ = 5138112000. Its totient is φ = 578037384.

The previous prime is 2023131203. The next prime is 2023131247. The reversal of 2023131222 is 2221313202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2023131195 and 2023131204.

It is a congruent number.

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, 2675722 + ... + 2676477.

It is an arithmetic number, because the mean of its divisors is an integer number (160566000).

Almost surely, 22023131222 is an apocalyptic number.

2023131222 is an abundant number, since it is smaller than the sum of its proper divisors (3114980778).

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

2023131222 is a wasteful number, since it uses less digits than its factorization.

2023131222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5352217 (or 5352211 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2023131222 is about 44979.2310072104. The cubic root of 2023131222 is about 1264.7596958485.

Adding to 2023131222 its reverse (2221313202), we get a palindrome (4244444424).

The spelling of 2023131222 in words is "two billion, twenty-three million, one hundred thirty-one thousand, two hundred twenty-two".

Divisors: 1 2 3 6 7 9 14 18 21 27 42 54 63 126 189 378 5352199 10704398 16056597 32113194 37465393 48169791 74930786 96339582 112396179 144509373 224792358 289018746 337188537 674377074 1011565611 2023131222