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317142125 = 5323310889
BaseRepresentation
bin10010111001110…
…011010001101101
3211002202111012122
4102321303101231
51122142022000
651245242325
710600443416
oct2271632155
9732674178
10317142125
11153022633
128a2633a5
1350920481
143019680d
151cc98085
hex12e7346d

317142125 has 16 divisors (see below), whose sum is σ = 397528560. Its totient is φ = 252601600.

The previous prime is 317142113. The next prime is 317142143. The reversal of 317142125 is 521241713.

317142125 = 2213 + 2223 + ... + 2453.

It can be written as a sum of positive squares in 8 ways, for example, as 243765769 + 73376356 = 15613^2 + 8566^2 .

It is not a de Polignac number, because 317142125 - 24 = 317142109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 317142094 and 317142103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23681 + ... + 34569.

It is an arithmetic number, because the mean of its divisors is an integer number (24845535).

Almost surely, 2317142125 is an apocalyptic number.

It is an amenable number.

317142125 is a deficient number, since it is larger than the sum of its proper divisors (80386435).

317142125 is a wasteful number, since it uses less digits than its factorization.

317142125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11137 (or 11127 counting only the distinct ones).

The product of its digits is 1680, while the sum is 26.

The square root of 317142125 is about 17808.4846351395. The cubic root of 317142125 is about 681.9480794259.

Adding to 317142125 its reverse (521241713), we get a palindrome (838383838).

The spelling of 317142125 in words is "three hundred seventeen million, one hundred forty-two thousand, one hundred twenty-five".

Divisors: 1 5 25 125 233 1165 5825 10889 29125 54445 272225 1361125 2537137 12685685 63428425 317142125