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528006380 = 2251117313873
BaseRepresentation
bin11111011110001…
…011110011101100
31100210112111120212
4133132023303230
52040132201010
6124221001552
716040660126
oct3736136354
91323474525
10528006380
11251056010
121289b32b8
138550c815
14501a6216
153154b505
hex1f78bcec

528006380 has 48 divisors (see below), whose sum is σ = 1216694304. Its totient is φ = 190878720.

The previous prime is 528006359. The next prime is 528006419. The reversal of 528006380 is 83600825.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31124 + ... + 44996.

It is an arithmetic number, because the mean of its divisors is an integer number (25347798).

Almost surely, 2528006380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 528006380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (608347152).

528006380 is an abundant number, since it is smaller than the sum of its proper divisors (688687924).

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

528006380 is a wasteful number, since it uses less digits than its factorization.

528006380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14066 (or 14064 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 528006380 is about 22978.3894126634. The cubic root of 528006380 is about 808.2512595547.

The spelling of 528006380 in words is "five hundred twenty-eight million, six thousand, three hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 173 220 346 692 865 1730 1903 3460 3806 7612 9515 13873 19030 27746 38060 55492 69365 138730 152603 277460 305206 610412 763015 1526030 2400029 3052060 4800058 9600116 12000145 24000290 26400319 48000580 52800638 105601276 132001595 264003190 528006380