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520030264 = 231337149907
BaseRepresentation
bin11110111111110…
…000100000111000
31100020112021102011
4132333300200320
52031111432024
6123334015304
715613120135
oct3677604070
91306467364
10520030264
112475a8486
121261a7534
1383979220
144d0cb58c
15309c3094
hex1eff0838

520030264 has 64 divisors (see below), whose sum is σ = 1086876000. Its totient is φ = 231704064.

The previous prime is 520030249. The next prime is 520030267. The reversal of 520030264 is 462030025.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520030267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 572899 + ... + 573805.

Almost surely, 2520030264 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 520030264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (543438000).

520030264 is an abundant number, since it is smaller than the sum of its proper divisors (566845736).

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

520030264 is a wasteful number, since it uses less digits than its factorization.

520030264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112 (or 1108 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 520030264 is about 22804.1720744253. The cubic root of 520030264 is about 804.1607518311.

Adding to 520030264 its reverse (462030025), we get a palindrome (982060289).

The spelling of 520030264 in words is "five hundred twenty million, thirty thousand, two hundred sixty-four".

Divisors: 1 2 4 8 13 26 37 52 74 104 148 149 296 298 481 596 907 962 1192 1814 1924 1937 3628 3848 3874 5513 7256 7748 11026 11791 15496 22052 23582 33559 44104 47164 67118 71669 94328 134236 135143 143338 268472 270286 286676 436267 540572 573352 872534 1081144 1745068 1756859 3490136 3513718 5000291 7027436 10000582 14054872 20001164 40002328 65003783 130007566 260015132 520030264