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8272830 = 2352937257
BaseRepresentation
bin11111100011101110111110
3120120022012010
4133203232332
54104212310
6453152050
7130214016
oct37435676
916508163
108272830
114740555
12292b626
131938687
141154c46
15ad6320
hex7e3bbe

8272830 has 64 divisors (see below), whose sum is σ = 21176640. Its totient is φ = 2064384.

The previous prime is 8272819. The next prime is 8272853. The reversal of 8272830 is 382728.

It is a super-3 number, since 3×82728303 (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32062 + ... + 32318.

It is an arithmetic number, because the mean of its divisors is an integer number (330885).

Almost surely, 28272830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8272830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10588320).

8272830 is an abundant number, since it is smaller than the sum of its proper divisors (12903810).

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

8272830 is a wasteful number, since it uses less digits than its factorization.

8272830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 8272830 is about 2876.2527705332. The cubic root of 8272830 is about 202.2482162554.

The spelling of 8272830 in words is "eight million, two hundred seventy-two thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 10 15 29 30 37 58 74 87 111 145 174 185 222 257 290 370 435 514 555 771 870 1073 1110 1285 1542 2146 2570 3219 3855 5365 6438 7453 7710 9509 10730 14906 16095 19018 22359 28527 32190 37265 44718 47545 57054 74530 95090 111795 142635 223590 275761 285270 551522 827283 1378805 1654566 2757610 4136415 8272830