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8413125 = 3547641
BaseRepresentation
bin100000000101…
…111111000101
3120211102122020
4200011333011
54123210000
6500153353
7131340030
oct40057705
916742566
108413125
1148269a6
122998859
1319874a6
141190017
15b12ba0
hex805fc5

8413125 has 40 divisors (see below), whose sum is σ = 16044864. Its totient is φ = 3840000.

The previous prime is 8413109. The next prime is 8413133. The reversal of 8413125 is 5213148.

It is not a de Polignac number, because 8413125 - 24 = 8413109 is a prime.

It is an Ulam number.

8413125 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 8413095 and 8413104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 12805 + ... + 13445.

Almost surely, 28413125 is an apocalyptic number.

It is an amenable number.

8413125 is a deficient number, since it is larger than the sum of its proper divisors (7631739).

8413125 is an equidigital number, since it uses as much as digits as its factorization.

8413125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671 (or 656 counting only the distinct ones).

The product of its digits is 960, while the sum is 24.

The square root of 8413125 is about 2900.5387430614. The cubic root of 8413125 is about 203.3850908883.

It can be divided in two parts, 84 and 13125, that multiplied together give a square (1102500 = 10502).

The spelling of 8413125 in words is "eight million, four hundred thirteen thousand, one hundred twenty-five".

Divisors: 1 3 5 7 15 21 25 35 75 105 125 175 375 525 625 641 875 1875 1923 2625 3205 4375 4487 9615 13125 13461 16025 22435 48075 67305 80125 112175 240375 336525 400625 560875 1201875 1682625 2804375 8413125