Search a number
-
+
1625130389 = 23263268661
BaseRepresentation
bin110000011011101…
…1000010110010101
311012020222011210102
41200313120112111
511312013133024
6425132103445
755162244321
oct14067302625
94166864712
101625130389
11764386573
12394304b85
131cb8c441c
14115b96981
1597a151ae
hex60dd8595

1625130389 has 8 divisors (see below), whose sum is σ = 1702242432. Its totient is φ = 1548556240.

The previous prime is 1625130383. The next prime is 1625130427. The reversal of 1625130389 is 9830315261.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1625130389 - 220 = 1624081813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1625130383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128282 + ... + 140379.

It is an arithmetic number, because the mean of its divisors is an integer number (212780304).

Almost surely, 21625130389 is an apocalyptic number.

It is an amenable number.

1625130389 is a deficient number, since it is larger than the sum of its proper divisors (77112043).

1625130389 is a wasteful number, since it uses less digits than its factorization.

1625130389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268947.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 1625130389 is about 40312.9059855526. The cubic root of 1625130389 is about 1175.6987879608.

The spelling of 1625130389 in words is "one billion, six hundred twenty-five million, one hundred thirty thousand, three hundred eighty-nine".

Divisors: 1 23 263 6049 268661 6179203 70657843 1625130389