Search a number
-
+
313148250 = 23253139177
BaseRepresentation
bin10010101010100…
…100001101011010
3210211020120122100
4102222210031122
51120131221000
651023504230
710521500442
oct2252441532
9724216570
10313148250
11150844a08
1288a58076
134cb5262c
142d837122
151c759a00
hex12aa435a

313148250 has 48 divisors (see below), whose sum is σ = 846758952. Its totient is φ = 83505600.

The previous prime is 313148237. The next prime is 313148261. The reversal of 313148250 is 52841313.

It is a happy number.

313148250 is a `hidden beast` number, since 3 + 131 + 482 + 50 = 666.

313148250 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 15896169 + 297252081 = 3987^2 + 17241^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67339 + ... + 71838.

Almost surely, 2313148250 is an apocalyptic number.

313148250 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

313148250 is an abundant number, since it is smaller than the sum of its proper divisors (533610702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

313148250 is a wasteful number, since it uses less digits than its factorization.

313148250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139200 (or 139187 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 313148250 is about 17695.9953096739. The cubic root of 313148250 is about 679.0733123889.

Adding to 313148250 its reverse (52841313), we get a palindrome (365989563).

The spelling of 313148250 in words is "three hundred thirteen million, one hundred forty-eight thousand, two hundred fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 30 45 50 75 90 125 150 225 250 375 450 750 1125 2250 139177 278354 417531 695885 835062 1252593 1391770 2087655 2505186 3479425 4175310 6262965 6958850 10438275 12525930 17397125 20876550 31314825 34794250 52191375 62629650 104382750 156574125 313148250