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1248275470993 = 6718630977179
BaseRepresentation
bin10010001010100011000…
…001000001101010010001
311102100000110112010112121
4102022203001001222101
5130422432010032433
62353241055254241
7156120300302305
oct22124301015221
94370013463477
101248275470993
11441432a62a61
12181b10b1a381
1390933ca0465
14445b9bc9d05
152270ce83c2d
hex122a3041a91

1248275470993 has 4 divisors (see below), whose sum is σ = 1266906448240. Its totient is φ = 1229644493748.

The previous prime is 1248275470963. The next prime is 1248275470997. The reversal of 1248275470993 is 3990745728421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1248275470993 - 25 = 1248275470961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1248275470997) 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, 9315488523 + ... + 9315488656.

It is an arithmetic number, because the mean of its divisors is an integer number (316726612060).

Almost surely, 21248275470993 is an apocalyptic number.

It is an amenable number.

1248275470993 is a deficient number, since it is larger than the sum of its proper divisors (18630977247).

1248275470993 is an equidigital number, since it uses as much as digits as its factorization.

1248275470993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18630977246.

The product of its (nonzero) digits is 30481920, while the sum is 61.

The spelling of 1248275470993 in words is "one trillion, two hundred forty-eight billion, two hundred seventy-five million, four hundred seventy thousand, nine hundred ninety-three".

Divisors: 1 67 18630977179 1248275470993