[go: up one dir, main page]

Search a number
-
+
313028125 = 55100169
BaseRepresentation
bin10010101010000…
…110111000011101
3210211000110212021
4102222012320131
51120113400000
651021140141
710520460304
oct2252067035
9724013767
10313028125
11150772733
12889ba651
134cb0ca57
142d80543b
151c73411a
hex12a86e1d

313028125 has 12 divisors (see below), whose sum is σ = 391264020. Its totient is φ = 250420000.

The previous prime is 313028113. The next prime is 313028141. The reversal of 313028125 is 521820313.

It can be written as a sum of positive squares in 6 ways, for example, as 310534884 + 2493241 = 17622^2 + 1579^2 .

It is not a de Polignac number, because 313028125 - 27 = 313027997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 313028125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46960 + ... + 53209.

It is an arithmetic number, because the mean of its divisors is an integer number (32605335).

Almost surely, 2313028125 is an apocalyptic number.

It is an amenable number.

313028125 is a deficient number, since it is larger than the sum of its proper divisors (78235895).

313028125 is an frugal number, since it uses more digits than its factorization.

313028125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100194 (or 100174 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 313028125 is about 17692.6008545946. The cubic root of 313028125 is about 678.9864694804.

Adding to 313028125 its reverse (521820313), we get a palindrome (834848438).

The spelling of 313028125 in words is "three hundred thirteen million, twenty-eight thousand, one hundred twenty-five".

Divisors: 1 5 25 125 625 3125 100169 500845 2504225 12521125 62605625 313028125