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8349932640625 = 56231172
BaseRepresentation
bin111100110000001111011…
…0001001101100101110001
31002120020122011101101112121
41321200132301031211301
52043301130224000000
625431523414554241
71521156054246412
oct171403661154561
932506564341477
108349932640625
11272a206325484
12b2a333668981
1348751a539b64
1420c1d31b9809
15e7303110b1a
hex7981ec4d971

8349932640625 has 21 divisors (see below), whose sum is σ = 10437733719517. Its totient is φ = 6679657150000.

The previous prime is 8349932640613. The next prime is 8349932640653. The reversal of 8349932640625 is 5260462399438.

The square root of 8349932640625 is 2889625.

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

It can be written as a sum of positive squares in 10 ways, for example, as 1192937975089 + 7156994665536 = 1092217^2 + 2675256^2 .

It is not a de Polignac number, because 8349932640625 - 233 = 8341342706033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 361191567 + ... + 361214683.

Almost surely, 28349932640625 is an apocalyptic number.

8349932640625 is the 2889625-th square number.

8349932640625 is the 1444813-rd centered octagonal number.

It is an amenable number.

8349932640625 is a deficient number, since it is larger than the sum of its proper divisors (2087801078892).

8349932640625 is an frugal number, since it uses more digits than its factorization.

8349932640625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46264 (or 23122 counting only the distinct ones).

The product of its (nonzero) digits is 67184640, while the sum is 61.

The spelling of 8349932640625 in words is "eight trillion, three hundred forty-nine billion, nine hundred thirty-two million, six hundred forty thousand, six hundred twenty-five".

Divisors: 1 5 25 125 625 3125 15625 23117 115585 577925 2889625 14448125 72240625 361203125 534395689 2671978445 13359892225 66799461125 333997305625 1669986528125 8349932640625