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8252728 = 2311191491
BaseRepresentation
bin11111011110110100111000
3120112021121121
4133132310320
54103041403
6452515024
7130101301
oct37366470
916467547
108252728
114727440
12291ba74
13192c493
14114b7a8
15ad03bd
hex7ded38

8252728 has 32 divisors (see below), whose sum is σ = 17003520. Its totient is φ = 3724000.

The previous prime is 8252711. The next prime is 8252737. The reversal of 8252728 is 8272528.

It is a junction number, because it is equal to n+sod(n) for n = 8252693 and 8252702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16563 + ... + 17053.

It is an arithmetic number, because the mean of its divisors is an integer number (531360).

Almost surely, 28252728 is an apocalyptic number.

8252728 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

8252728 is an abundant number, since it is smaller than the sum of its proper divisors (8750792).

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

8252728 is a wasteful number, since it uses less digits than its factorization.

8252728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699 (or 695 counting only the distinct ones).

The product of its digits is 17920, while the sum is 34.

The square root of 8252728 is about 2872.7561678639. The cubic root of 8252728 is about 202.0842702995.

It can be divided in two parts, 825 and 2728, that added together give a palindrome (3553).

The spelling of 8252728 in words is "eight million, two hundred fifty-two thousand, seven hundred twenty-eight".

Divisors: 1 2 4 8 11 22 44 88 191 382 491 764 982 1528 1964 2101 3928 4202 5401 8404 10802 16808 21604 43208 93781 187562 375124 750248 1031591 2063182 4126364 8252728