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8250028 = 2219108553
BaseRepresentation
bin11111011110001010101100
3120112010220121
4133132022230
54103000103
6452454324
7130060363
oct37361254
916463817
108250028
114725406
12291a3a4
13192b197
14114a7da
15ace6bd
hex7de2ac

8250028 has 12 divisors (see below), whose sum is σ = 15197560. Its totient is φ = 3907872.

The previous prime is 8250019. The next prime is 8250037. The reversal of 8250028 is 8200528.

It is an interprime number because it is at equal distance from previous prime (8250019) and next prime (8250037).

It is a junction number, because it is equal to n+sod(n) for n = 8249984 and 8250011.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54201 + ... + 54352.

Almost surely, 28250028 is an apocalyptic number.

It is an amenable number.

8250028 is a deficient number, since it is larger than the sum of its proper divisors (6947532).

8250028 is a wasteful number, since it uses less digits than its factorization.

8250028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108576 (or 108574 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 8250028 is about 2872.2861974392. The cubic root of 8250028 is about 202.0622296262.

It can be divided in two parts, 82500 and 28, that added together give a palindrome (82528).

The spelling of 8250028 in words is "eight million, two hundred fifty thousand, twenty-eight".

Divisors: 1 2 4 19 38 76 108553 217106 434212 2062507 4125014 8250028