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3104311987 = 72027218783
BaseRepresentation
bin1011100100001000…
…0000101010110011
322000100022101111001
42321002000222303
522324200440422
61232012102431
7136633134160
oct27102005263
98010271431
103104311987
1113533375a7
12727764a17
133a61a78ca
142163db067
151327eb227
hexb9080ab3

3104311987 has 8 divisors (see below), whose sum is σ = 3549551616. Its totient is φ = 2659513992.

The previous prime is 3104311981. The next prime is 3104311999. The reversal of 3104311987 is 7891134013.

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 3104311987 - 223 = 3095923379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3104311981) 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 7 ways as a sum of consecutive naturals, for example, 95203 + ... + 123580.

It is an arithmetic number, because the mean of its divisors is an integer number (443693952).

Almost surely, 23104311987 is an apocalyptic number.

3104311987 is a deficient number, since it is larger than the sum of its proper divisors (445239629).

3104311987 is a wasteful number, since it uses less digits than its factorization.

3104311987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220817.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 3104311987 is about 55716.3529585345. The cubic root of 3104311987 is about 1458.7754771405.

The spelling of 3104311987 in words is "three billion, one hundred four million, three hundred eleven thousand, nine hundred eighty-seven".

Divisors: 1 7 2027 14189 218783 1531481 443473141 3104311987