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1074247780 = 22553712389
BaseRepresentation
bin100000000000111…
…1011100001100100
32202212101102220211
41000001323201210
54200001412110
6254332505204
735422645504
oct10001734144
92685342824
101074247780
11501426291
1225b91b204
13141735298
14a2957a04
156449a98a
hex4007b864

1074247780 has 12 divisors (see below), whose sum is σ = 2255920380. Its totient is φ = 429699104.

The previous prime is 1074247777. The next prime is 1074247789. The reversal of 1074247780 is 877424701.

It can be written as a sum of positive squares in 2 ways, for example, as 485409024 + 588838756 = 22032^2 + 24266^2 .

It is not an unprimeable number, because it can be changed into a prime (1074247789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26856175 + ... + 26856214.

It is an arithmetic number, because the mean of its divisors is an integer number (187993365).

Almost surely, 21074247780 is an apocalyptic number.

1074247780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1074247780 is an abundant number, since it is smaller than the sum of its proper divisors (1181672600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1074247780 is a wasteful number, since it uses less digits than its factorization.

1074247780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53712398 (or 53712396 counting only the distinct ones).

The product of its (nonzero) digits is 87808, while the sum is 40.

The square root of 1074247780 is about 32775.7193666287. The cubic root of 1074247780 is about 1024.1608138245.

The spelling of 1074247780 in words is "one billion, seventy-four million, two hundred forty-seven thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 53712389 107424778 214849556 268561945 537123890 1074247780