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3081147001 = 12037255973
BaseRepresentation
bin1011011110100110…
…1001001001111001
321221201201111002121
42313221221021321
522302233201001
61225423401241
7136232213602
oct26751511171
97851644077
103081147001
111341255389
1271ba53221
133a1456a0a
142132cada9
151307726a1
hexb7a69279

3081147001 has 4 divisors (see below), whose sum is σ = 3081415012. Its totient is φ = 3080878992.

The previous prime is 3081146987. The next prime is 3081147037. The reversal of 3081147001 is 1007411803.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1296000000 + 1785147001 = 36000^2 + 42251^2 .

It is a cyclic number.

It is not a de Polignac number, because 3081147001 - 25 = 3081146969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3081147061) 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, 115950 + ... + 140023.

It is an arithmetic number, because the mean of its divisors is an integer number (770353753).

Almost surely, 23081147001 is an apocalyptic number.

It is an amenable number.

3081147001 is a deficient number, since it is larger than the sum of its proper divisors (268011).

3081147001 is a wasteful number, since it uses less digits than its factorization.

3081147001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268010.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 3081147001 is about 55508.0805018513. The cubic root of 3081147001 is about 1455.1378574559.

Adding to 3081147001 its reverse (1007411803), we get a palindrome (4088558804).

The spelling of 3081147001 in words is "three billion, eighty-one million, one hundred forty-seven thousand, one".

Divisors: 1 12037 255973 3081147001