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8740006145 = 513134461633
BaseRepresentation
bin10000010001111000…
…11110100100000001
3211120002212022111022
420020330132210001
5120344420144040
64003132355225
7426404553323
oct101074364401
924502768438
108740006145
113785561a82
12183b015b15
13a9394ba90
145cca97613
153624716b5
hex208f1e901

8740006145 has 8 divisors (see below), whose sum is σ = 11294777256. Its totient is φ = 6454158336.

The previous prime is 8740006133. The next prime is 8740006159. The reversal of 8740006145 is 5416000478.

It is a Cunningham number, because it is equal to 934882+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 8740006144 = 1^2 + 93488^2 .

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 8740006145 - 216 = 8739940609 is a prime.

It is a super-2 number, since 2×87400061452 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 67230752 + ... + 67230881.

It is an arithmetic number, because the mean of its divisors is an integer number (1411847157).

Almost surely, 28740006145 is an apocalyptic number.

It is an amenable number.

8740006145 is a deficient number, since it is larger than the sum of its proper divisors (2554771111).

8740006145 is a wasteful number, since it uses less digits than its factorization.

8740006145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134461651.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 8740006145 is about 93488.0000053483. Note that the first 5 decimals coincide. The cubic root of 8740006145 is about 2059.8578266947.

The spelling of 8740006145 in words is "eight billion, seven hundred forty million, six thousand, one hundred forty-five".

Divisors: 1 5 13 65 134461633 672308165 1748001229 8740006145