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7382142909 = 328111011391
BaseRepresentation
bin1101110000000001…
…01000111110111101
3201001110210201022100
412320000220332331
5110104312033114
63220304535313
7350636115351
oct67000507675
921043721270
107382142909
113149033259
121520321539
139085345cb
145005d3461
152d3151909
hex1b8028fbd

7382142909 has 12 divisors (see below), whose sum is σ = 10676253952. Its totient is φ = 4915355400.

The previous prime is 7382142907. The next prime is 7382142919. The reversal of 7382142909 is 9092412837.

It is not a de Polignac number, because 7382142909 - 21 = 7382142907 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7382142907) 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 11 ways as a sum of consecutive naturals, for example, 498397 + ... + 512994.

Almost surely, 27382142909 is an apocalyptic number.

It is an amenable number.

7382142909 is a deficient number, since it is larger than the sum of its proper divisors (3294111043).

7382142909 is a wasteful number, since it uses less digits than its factorization.

7382142909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012208 (or 1012205 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 7382142909 is about 85919.3977457943. The cubic root of 7382142909 is about 1947.1264191582.

The spelling of 7382142909 in words is "seven billion, three hundred eighty-two million, one hundred forty-two thousand, nine hundred nine".

Divisors: 1 3 9 811 2433 7299 1011391 3034173 9102519 820238101 2460714303 7382142909