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7145322983 = 50231422521
BaseRepresentation
bin1101010011110010…
…01111100111100111
3200102222012000102222
412221321033213213
5104113200313413
63141005022555
7342032146301
oct65171174747
920388160388
107145322983
113037391a07
121474b54a5b
1389b458086
144bad88971
152bc472b08
hex1a9e4f9e7

7145322983 has 4 divisors (see below), whose sum is σ = 7146750528. Its totient is φ = 7143895440.

The previous prime is 7145322949. The next prime is 7145323049. The reversal of 7145322983 is 3892235417.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3892235417 = 7556033631.

It is a cyclic number.

It is not a de Polignac number, because 7145322983 - 28 = 7145322727 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 (7145322883) 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, 706238 + ... + 716283.

It is an arithmetic number, because the mean of its divisors is an integer number (1786687632).

Almost surely, 27145322983 is an apocalyptic number.

7145322983 is a deficient number, since it is larger than the sum of its proper divisors (1427545).

7145322983 is a wasteful number, since it uses less digits than its factorization.

7145322983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1427544.

The product of its digits is 362880, while the sum is 44.

The square root of 7145322983 is about 84530.0123210685. The cubic root of 7145322983 is about 1926.0783732895.

The spelling of 7145322983 in words is "seven billion, one hundred forty-five million, three hundred twenty-two thousand, nine hundred eighty-three".

Divisors: 1 5023 1422521 7145322983