Search a number
-
+
1248220623 = 31332005657
BaseRepresentation
bin100101001100110…
…0101010111001111
310012222202011210110
41022121211113033
510024021024443
6323505411103
742634462116
oct11231452717
93188664713
101248220623
115906516a1
122aa039a93
1316b7a89b0
14bbac2c7d
15748b3233
hex4a6655cf

1248220623 has 8 divisors (see below), whose sum is σ = 1792316848. Its totient is φ = 768135744.

The previous prime is 1248220583. The next prime is 1248220663. The reversal of 1248220623 is 3260228421.

It is an interprime number because it is at equal distance from previous prime (1248220583) and next prime (1248220663).

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

It is not a de Polignac number, because 1248220623 - 26 = 1248220559 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 (1248220663) 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, 16002790 + ... + 16002867.

It is an arithmetic number, because the mean of its divisors is an integer number (224039606).

Almost surely, 21248220623 is an apocalyptic number.

1248220623 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1248220623 is a deficient number, since it is larger than the sum of its proper divisors (544096225).

1248220623 is a wasteful number, since it uses less digits than its factorization.

1248220623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32005673.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 1248220623 is about 35330.1659067715. The cubic root of 1248220623 is about 1076.7059620829.

The spelling of 1248220623 in words is "one billion, two hundred forty-eight million, two hundred twenty thousand, six hundred twenty-three".

Divisors: 1 3 13 39 32005657 96016971 416073541 1248220623