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4380075857 = 17257651521
BaseRepresentation
bin1000001010001001…
…01010011101010001
3102022020212220111202
410011010222131101
532432244411412
62002344120545
7213354013313
oct40504523521
912266786452
104380075857
111948490903
12a22a66155
1354a5a8281
142d7a0d7b3
151a98003c2
hex10512a751

4380075857 has 4 divisors (see below), whose sum is σ = 4637727396. Its totient is φ = 4122424320.

The previous prime is 4380075851. The next prime is 4380075881. The reversal of 4380075857 is 7585700834.

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: 7585700834 = 23792850417.

It can be written as a sum of positive squares in 2 ways, for example, as 1796996881 + 2583078976 = 42391^2 + 50824^2 .

It is a cyclic number.

It is not a de Polignac number, because 4380075857 - 210 = 4380074833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4380075851) 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 3 ways as a sum of consecutive naturals, for example, 128825744 + ... + 128825777.

It is an arithmetic number, because the mean of its divisors is an integer number (1159431849).

Almost surely, 24380075857 is an apocalyptic number.

It is an amenable number.

4380075857 is a deficient number, since it is larger than the sum of its proper divisors (257651539).

4380075857 is a wasteful number, since it uses less digits than its factorization.

4380075857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257651538.

The product of its (nonzero) digits is 940800, while the sum is 47.

The square root of 4380075857 is about 66182.1415262456. The cubic root of 4380075857 is about 1636.1654235847.

The spelling of 4380075857 in words is "four billion, three hundred eighty million, seventy-five thousand, eight hundred fifty-seven".

Divisors: 1 17 257651521 4380075857