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1010143223 = 4721492409
BaseRepresentation
bin111100001101011…
…000111111110111
32121101202120222222
4330031120333313
54032044040343
6244122512555
734014034655
oct7415307767
92541676888
101010143223
11479221611
1224236575b
1313137bcab
149822bdd5
155da36a68
hex3c358ff7

1010143223 has 4 divisors (see below), whose sum is σ = 1031635680. Its totient is φ = 988650768.

The previous prime is 1010143207. The next prime is 1010143231. The reversal of 1010143223 is 3223410101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3223410101 = 31103980971.

It is a cyclic number.

It is not a de Polignac number, because 1010143223 - 24 = 1010143207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010143423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10746158 + ... + 10746251.

It is an arithmetic number, because the mean of its divisors is an integer number (257908920).

Almost surely, 21010143223 is an apocalyptic number.

1010143223 is a deficient number, since it is larger than the sum of its proper divisors (21492457).

1010143223 is an equidigital number, since it uses as much as digits as its factorization.

1010143223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21492456.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1010143223 is about 31782.7504001778. The cubic root of 1010143223 is about 1003.3697066561.

Adding to 1010143223 its reverse (3223410101), we get a palindrome (4233553324).

The spelling of 1010143223 in words is "one billion, ten million, one hundred forty-three thousand, two hundred twenty-three".

Divisors: 1 47 21492409 1010143223