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8125425 = 3252721167
BaseRepresentation
bin11110111111101111110001
3120021210222200
4132333233301
54040003200
6450053413
7126031200
oct36775761
916253880
108125425
11464a830
12287a269
1318b6559
141117237
15aa7800
hex7bfbf1

8125425 has 108 divisors (see below), whose sum is σ = 18744336. Its totient is φ = 3326400.

The previous prime is 8125391. The next prime is 8125427. The reversal of 8125425 is 5245218.

It is a happy number.

It is not a de Polignac number, because 8125425 - 210 = 8124401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8125427) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 121242 + ... + 121308.

Almost surely, 28125425 is an apocalyptic number.

It is an amenable number.

8125425 is an abundant number, since it is smaller than the sum of its proper divisors (10618911).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8125425 is a wasteful number, since it uses less digits than its factorization.

8125425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108 (or 93 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 8125425 is about 2850.5131117046. The cubic root of 8125425 is about 201.0397931164.

The spelling of 8125425 in words is "eight million, one hundred twenty-five thousand, four hundred twenty-five".

Divisors: 1 3 5 7 9 11 15 21 25 33 35 45 49 55 63 67 75 77 99 105 147 165 175 201 225 231 245 275 315 335 385 441 469 495 525 539 603 693 735 737 825 1005 1155 1225 1407 1575 1617 1675 1925 2205 2211 2345 2475 2695 3015 3283 3465 3675 3685 4221 4851 5025 5159 5775 6633 7035 8085 9849 11025 11055 11725 13475 15075 15477 16415 17325 18425 21105 24255 25795 29547 33165 35175 36113 40425 46431 49245 55275 77385 82075 105525 108339 121275 128975 147735 165825 180565 232155 246225 325017 386925 541695 738675 902825 1160775 1625085 2708475 8125425