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2130246149 = 17125308597
BaseRepresentation
bin111111011111000…
…1111101000000101
312111110102201100112
41332332033220011
513330320334044
6551214322405
7103534536113
oct17676175005
95443381315
102130246149
119a3517509
124b54b9405
1327c44aba5
14162cc0ab3
15c703e09e
hex7ef8fa05

2130246149 has 4 divisors (see below), whose sum is σ = 2255554764. Its totient is φ = 2004937536.

The previous prime is 2130246133. The next prime is 2130246163. The reversal of 2130246149 is 9416420312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1309137124 + 821109025 = 36182^2 + 28655^2 .

It is a cyclic number.

It is not a de Polignac number, because 2130246149 - 24 = 2130246133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130246109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62654282 + ... + 62654315.

It is an arithmetic number, because the mean of its divisors is an integer number (563888691).

Almost surely, 22130246149 is an apocalyptic number.

It is an amenable number.

2130246149 is a deficient number, since it is larger than the sum of its proper divisors (125308615).

2130246149 is a wasteful number, since it uses less digits than its factorization.

2130246149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125308614.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 2130246149 is about 46154.5896851007. The cubic root of 2130246149 is about 1286.6979122575.

The spelling of 2130246149 in words is "two billion, one hundred thirty million, two hundred forty-six thousand, one hundred forty-nine".

Divisors: 1 17 125308597 2130246149