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1074893905 = 5214978781
BaseRepresentation
bin100000000010001…
…1001010001010001
32202220121021020101
41000010121101101
54200133101110
6254354412401
735431306321
oct10004312121
92686537211
101074893905
11501827778
1225bb91101
131419003c7
14a2a85281
156457713a
hex40119451

1074893905 has 4 divisors (see below), whose sum is σ = 1289872692. Its totient is φ = 859915120.

The previous prime is 1074893893. The next prime is 1074893927. The reversal of 1074893905 is 5093984701.

It is a happy number.

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 679957776 + 394936129 = 26076^2 + 19873^2 .

It is not a de Polignac number, because 1074893905 - 25 = 1074893873 is a prime.

It is a super-2 number, since 2×10748939052 = 2310793814012298050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107489386 + ... + 107489395.

It is an arithmetic number, because the mean of its divisors is an integer number (322468173).

Almost surely, 21074893905 is an apocalyptic number.

It is an amenable number.

1074893905 is a deficient number, since it is larger than the sum of its proper divisors (214978787).

1074893905 is an equidigital number, since it uses as much as digits as its factorization.

1074893905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214978786.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 1074893905 is about 32785.5746480064. The cubic root of 1074893905 is about 1024.3661057791.

It can be divided in two parts, 10748 and 93905, that added together give a triangular number (104653 = T457).

The spelling of 1074893905 in words is "one billion, seventy-four million, eight hundred ninety-three thousand, nine hundred five".

Divisors: 1 5 214978781 1074893905