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10487140 = 2251812897
BaseRepresentation
bin101000000000…
…010101100100
3201201210122121
4220000111210
510141042030
61012435324
7155065516
oct50002544
921653577
1010487140
115a13164
123618b44
132232511
14156dbb6
15dc247a
hexa00564

10487140 has 24 divisors (see below), whose sum is σ = 22152312. Its totient is φ = 4170240.

The previous prime is 10487123. The next prime is 10487143. The reversal of 10487140 is 4178401.

It can be written as a sum of positive squares in 4 ways, for example, as 589824 + 9897316 = 768^2 + 3146^2 .

It is not an unprimeable number, because it can be changed into a prime (10487143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2172 + ... + 5068.

It is an arithmetic number, because the mean of its divisors is an integer number (923013).

Almost surely, 210487140 is an apocalyptic number.

10487140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10487140 is an abundant number, since it is smaller than the sum of its proper divisors (11665172).

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

10487140 is a wasteful number, since it uses less digits than its factorization.

10487140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3087 (or 3085 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 10487140 is about 3238.3854001647. The cubic root of 10487140 is about 218.8865226691.

The spelling of 10487140 in words is "ten million, four hundred eighty-seven thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 181 362 724 905 1810 2897 3620 5794 11588 14485 28970 57940 524357 1048714 2097428 2621785 5243570 10487140