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2148785293 = 43139359509
BaseRepresentation
bin1000000000010011…
…1101110010001101
312112202022121021111
42000010331302031
513400042112133
6553115532021
7104151242104
oct20004756215
95482277244
102148785293
11a02a2a216
124bb75a011
1328323c3b5
1416554903b
15c89a21cd
hex8013dc8d

2148785293 has 8 divisors (see below), whose sum is σ = 2214581600. Its totient is φ = 2083708368.

The previous prime is 2148785269. The next prime is 2148785299. The reversal of 2148785293 is 3925878412.

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

It is a cyclic number.

It is not a de Polignac number, because 2148785293 - 225 = 2115230861 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 (2148785299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173778 + ... + 185731.

It is an arithmetic number, because the mean of its divisors is an integer number (276822700).

Almost surely, 22148785293 is an apocalyptic number.

It is an amenable number.

2148785293 is a deficient number, since it is larger than the sum of its proper divisors (65796307).

2148785293 is a wasteful number, since it uses less digits than its factorization.

2148785293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359691.

The product of its digits is 967680, while the sum is 49.

The square root of 2148785293 is about 46354.9921044109. The cubic root of 2148785293 is about 1290.4197686457.

The spelling of 2148785293 in words is "two billion, one hundred forty-eight million, seven hundred eighty-five thousand, two hundred ninety-three".

Divisors: 1 43 139 5977 359509 15458887 49971751 2148785293