Search a number
-
+
308250055 = 5507712143
BaseRepresentation
bin10010010111111…
…000010111000111
3210111000201120201
4102113320113013
51112403000210
650330511331
710432040131
oct2227702707
9714021521
10308250055
11148aa9913
1287295547
134bb28ca9
142cd20051
151c0dd53a
hex125f85c7

308250055 has 8 divisors (see below), whose sum is σ = 370003392. Its totient is φ = 246531168.

The previous prime is 308250023. The next prime is 308250073. The reversal of 308250055 is 550052803.

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 308250055 - 25 = 308250023 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 19314 + ... + 31456.

It is an arithmetic number, because the mean of its divisors is an integer number (46250424).

Almost surely, 2308250055 is an apocalyptic number.

308250055 is a deficient number, since it is larger than the sum of its proper divisors (61753337).

308250055 is a wasteful number, since it uses less digits than its factorization.

308250055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17225.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 308250055 is about 17557.0514324017. The cubic root of 308250055 is about 675.5140519500.

The spelling of 308250055 in words is "three hundred eight million, two hundred fifty thousand, fifty-five".

Divisors: 1 5 5077 12143 25385 60715 61650011 308250055