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8199130 = 25819913
BaseRepresentation
bin11111010001101111011010
3120102120002111
4133101233122
54044333010
6451422534
7126456112
oct37215732
916376074
108199130
1146a0145
1228b4a4a
131910c74
141136042
15abe58a
hex7d1bda

8199130 has 8 divisors (see below), whose sum is σ = 14758452. Its totient is φ = 3279648.

The previous prime is 8199101. The next prime is 8199133. The reversal of 8199130 is 319918.

It can be written as a sum of positive squares in 2 ways, for example, as 7447441 + 751689 = 2729^2 + 867^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 8199092 and 8199101.

It is not an unprimeable number, because it can be changed into a prime (8199133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 409947 + ... + 409966.

Almost surely, 28199130 is an apocalyptic number.

8199130 is a deficient number, since it is larger than the sum of its proper divisors (6559322).

8199130 is a wasteful number, since it uses less digits than its factorization.

8199130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819920.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 8199130 is about 2863.4123000364. The cubic root of 8199130 is about 201.6458356402.

The spelling of 8199130 in words is "eight million, one hundred ninety-nine thousand, one hundred thirty".

Divisors: 1 2 5 10 819913 1639826 4099565 8199130