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1248220023 = 31034039547
BaseRepresentation
bin100101001100110…
…0101001101110111
310012222202010222020
41022121211031313
510024021020043
6323505404223
742634460301
oct11231451567
93188663866
101248220023
115906511a6
122aa039673
1316b7a863b
14bbac2971
15748b2e83
hex4a665377

1248220023 has 8 divisors (see below), whose sum is σ = 1680451968. Its totient is φ = 824067384.

The previous prime is 1248220009. The next prime is 1248220073. The reversal of 1248220023 is 3200228421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1248220023 - 214 = 1248203639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1248219975 and 1248220002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1248220073) 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 7 ways as a sum of consecutive naturals, for example, 2019465 + ... + 2020082.

It is an arithmetic number, because the mean of its divisors is an integer number (210056496).

Almost surely, 21248220023 is an apocalyptic number.

1248220023 is a deficient number, since it is larger than the sum of its proper divisors (432231945).

1248220023 is a wasteful number, since it uses less digits than its factorization.

1248220023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4039653.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 1248220023 is about 35330.1574154433. The cubic root of 1248220023 is about 1076.7057895644.

Adding to 1248220023 its reverse (3200228421), we get a palindrome (4448448444).

The spelling of 1248220023 in words is "one billion, two hundred forty-eight million, two hundred twenty thousand, twenty-three".

Divisors: 1 3 103 309 4039547 12118641 416073341 1248220023