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1268053023 = 3422684341
BaseRepresentation
bin100101110010100…
…1111010000011111
310021101001202201210
41023211033100133
510044110144043
6325454435503
743265162406
oct11345172037
93241052653
101268053023
115a0868006
122b4802b93
13172930a43
14c05a663d
15764ce633
hex4b94f41f

1268053023 has 4 divisors (see below), whose sum is σ = 1690737368. Its totient is φ = 845368680.

The previous prime is 1268053021. The next prime is 1268053049. The reversal of 1268053023 is 3203508621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3203508621 = 31067836207.

It is not a de Polignac number, because 1268053023 - 21 = 1268053021 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 (1268053021) 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 3 ways as a sum of consecutive naturals, for example, 211342168 + ... + 211342173.

It is an arithmetic number, because the mean of its divisors is an integer number (422684342).

Almost surely, 21268053023 is an apocalyptic number.

1268053023 is a deficient number, since it is larger than the sum of its proper divisors (422684345).

1268053023 is an equidigital number, since it uses as much as digits as its factorization.

1268053023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422684344.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 1268053023 is about 35609.7321388409. The cubic root of 1268053023 is about 1082.3784524315.

It can be divided in two parts, 12680 and 53023, that added together give a triangular number (65703 = T362).

The spelling of 1268053023 in words is "one billion, two hundred sixty-eight million, fifty-three thousand, twenty-three".

Divisors: 1 3 422684341 1268053023