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10387405 = 57463641
BaseRepresentation
bin100111100111…
…111111001101
3201112201211201
4213213333031
510124344110
61010345501
7154201660
oct47477715
921481751
1010387405
115955236
12358b291
1321c8cc2
1415456d7
15da2b3a
hex9e7fcd

10387405 has 16 divisors (see below), whose sum is σ = 14298624. Its totient is φ = 7096320.

The previous prime is 10387397. The next prime is 10387427. The reversal of 10387405 is 50478301.

It is not a de Polignac number, because 10387405 - 23 = 10387397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15885 + ... + 16525.

It is an arithmetic number, because the mean of its divisors is an integer number (893664).

Almost surely, 210387405 is an apocalyptic number.

It is an amenable number.

10387405 is a deficient number, since it is larger than the sum of its proper divisors (3911219).

10387405 is an equidigital number, since it uses as much as digits as its factorization.

10387405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 10387405 is about 3222.9497358786. The cubic root of 10387405 is about 218.1904250340.

The spelling of 10387405 in words is "ten million, three hundred eighty-seven thousand, four hundred five".

Divisors: 1 5 7 35 463 641 2315 3205 3241 4487 16205 22435 296783 1483915 2077481 10387405