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6512428 = 22131753139
BaseRepresentation
bin11000110101111100101100
3110020212101001
4120311330230
53131344203
6351330044
7106232446
oct30657454
913225331
106512428
11374897a
122220924
131470310
14c17496
1588991d
hex635f2c

6512428 has 48 divisors (see below), whose sum is σ = 13335840. Its totient is φ = 2755584.

The previous prime is 6512419. The next prime is 6512431. The reversal of 6512428 is 8242156.

It is a junction number, because it is equal to n+sod(n) for n = 6512396 and 6512405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46783 + ... + 46921.

It is an arithmetic number, because the mean of its divisors is an integer number (277830).

Almost surely, 26512428 is an apocalyptic number.

6512428 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

6512428 is an abundant number, since it is smaller than the sum of its proper divisors (6823412).

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

6512428 is a wasteful number, since it uses less digits than its factorization.

6512428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 224 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 6512428 is about 2551.9459241920. The cubic root of 6512428 is about 186.7444248040.

The spelling of 6512428 in words is "six million, five hundred twelve thousand, four hundred twenty-eight".

Divisors: 1 2 4 13 17 26 34 52 53 68 106 139 212 221 278 442 556 689 884 901 1378 1802 1807 2363 2756 3604 3614 4726 7228 7367 9452 11713 14734 23426 29468 30719 46852 61438 95771 122876 125239 191542 250478 383084 500956 1628107 3256214 6512428