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1068400487 = 71113875331
BaseRepresentation
bin111111101011100…
…111111101100111
32202110101100221102
4333223213331213
54142002303422
6254003310315
735322153140
oct7753477547
92673340842
101068400487
114a90a2110
1225997b39b
1314046894b
14a1c74ac7
1563be3192
hex3fae7f67

1068400487 has 8 divisors (see below), whose sum is σ = 1332031872. Its totient is φ = 832519800.

The previous prime is 1068400483. The next prime is 1068400511. The reversal of 1068400487 is 7840048601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1068400487 - 22 = 1068400483 is a prime.

It is a super-2 number, since 2×10684004872 = 2282959201243674338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1068400487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1068400483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6937589 + ... + 6937742.

It is an arithmetic number, because the mean of its divisors is an integer number (166503984).

Almost surely, 21068400487 is an apocalyptic number.

1068400487 is a deficient number, since it is larger than the sum of its proper divisors (263631385).

1068400487 is a wasteful number, since it uses less digits than its factorization.

1068400487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13875349.

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 1068400487 is about 32686.3960540161. The cubic root of 1068400487 is about 1022.2992113752.

The spelling of 1068400487 in words is "one billion, sixty-eight million, four hundred thousand, four hundred eighty-seven".

Divisors: 1 7 11 77 13875331 97127317 152628641 1068400487