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317830975225 = 5247223992
BaseRepresentation
bin1001010000000000011…
…00111100111011111001
31010101101012001102100221
410220000030330323321
520201404212201400
6402002020500041
731651101500011
oct4500014747371
91111335042327
10317830975225
11112878332965
1251720b4a621
1323c8202ba1a
1411551330c41
158402ccac1a
hex4a0033cef9

317830975225 has 27 divisors (see below), whose sum is σ = 402842069167. Its totient is φ = 248751158480.

The previous prime is 317830975213. The next prime is 317830975303. The reversal of 317830975225 is 522579038713.

It is a happy number.

The square root of 317830975225 is 563765.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 114419151081 + 203411824144 = 338259^2 + 451012^2 .

It is not a de Polignac number, because 317830975225 - 213 = 317830967033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 132483576 + ... + 132485974.

Almost surely, 2317830975225 is an apocalyptic number.

317830975225 is the 563765-th square number.

317830975225 is the 281883-rd centered octagonal number.

It is an amenable number.

317830975225 is a deficient number, since it is larger than the sum of its proper divisors (85011093942).

317830975225 is an frugal number, since it uses more digits than its factorization.

317830975225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4902 (or 2451 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 52.

The spelling of 317830975225 in words is "three hundred seventeen billion, eight hundred thirty million, nine hundred seventy-five thousand, two hundred twenty-five".

Divisors: 1 5 25 47 235 1175 2209 2399 11045 11995 55225 59975 112753 563765 2818825 5299391 5755201 26496955 28776005 132484775 143880025 270494447 1352472235 6762361175 12713239009 63566195045 317830975225