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10387130 = 251379901
BaseRepresentation
bin100111100111…
…111010111010
3201112201110112
4213213322322
510124342010
61010344322
7154201115
oct47477272
921481415
1010387130
115955006
12358b0a2
1321c8b40
14154557c
15da2a05
hex9e7eba

10387130 has 16 divisors (see below), whose sum is σ = 20135304. Its totient is φ = 3835200.

The previous prime is 10387109. The next prime is 10387147. The reversal of 10387130 is 3178301.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5621641 + 4765489 = 2371^2 + 2183^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10387096 and 10387105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39821 + ... + 40080.

Almost surely, 210387130 is an apocalyptic number.

10387130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10387130 is a deficient number, since it is larger than the sum of its proper divisors (9748174).

10387130 is a wasteful number, since it uses less digits than its factorization.

10387130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79921.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 10387130 is about 3222.9070728149. The cubic root of 10387130 is about 218.1884995323.

The spelling of 10387130 in words is "ten million, three hundred eighty-seven thousand, one hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 79901 159802 399505 799010 1038713 2077426 5193565 10387130