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3012887971 = 13721991883
BaseRepresentation
bin1011001110010101…
…0000010110100011
321202222021120022101
42303211100112203
522132244403341
61214544351231
7134443060642
oct26345202643
97688246271
103012887971
111306773365
12701015517
13390277762
142081dd359
1512978c831
hexb39505a3

3012887971 has 4 divisors (see below), whose sum is σ = 3034879992. Its totient is φ = 2990895952.

The previous prime is 3012887957. The next prime is 3012887987. The reversal of 3012887971 is 1797882103.

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

It is a cyclic number.

It is not a de Polignac number, because 3012887971 - 25 = 3012887939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3012884971) 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, 10995805 + ... + 10996078.

It is an arithmetic number, because the mean of its divisors is an integer number (758719998).

Almost surely, 23012887971 is an apocalyptic number.

3012887971 is a deficient number, since it is larger than the sum of its proper divisors (21992021).

3012887971 is a wasteful number, since it uses less digits than its factorization.

3012887971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21992020.

The product of its (nonzero) digits is 169344, while the sum is 46.

The square root of 3012887971 is about 54889.7802054262. The cubic root of 3012887971 is about 1444.3119165850.

The spelling of 3012887971 in words is "three billion, twelve million, eight hundred eighty-seven thousand, nine hundred seventy-one".

Divisors: 1 137 21991883 3012887971