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525560980 = 225731831459
BaseRepresentation
bin11111010100110…
…110110010010100
31100121221021010111
4133110312302110
52034020422410
6124052332404
716011123520
oct3724666224
91317837114
10525560980
1124a73581a
12128014104
1384b64739
144db2ad80
1531216b8a
hex1f536c94

525560980 has 96 divisors (see below), whose sum is σ = 1318625280. Its totient is φ = 172160640.

The previous prime is 525560963. The next prime is 525560993. The reversal of 525560980 is 89065525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 359491 + ... + 360949.

It is an arithmetic number, because the mean of its divisors is an integer number (13735680).

Almost surely, 2525560980 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 525560980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (659312640).

525560980 is an abundant number, since it is smaller than the sum of its proper divisors (793064300).

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

525560980 is a wasteful number, since it uses less digits than its factorization.

525560980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1589 (or 1587 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 40.

The square root of 525560980 is about 22925.1167935956. The cubic root of 525560980 is about 807.0015544460.

The spelling of 525560980 in words is "five hundred twenty-five million, five hundred sixty thousand, nine hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 31 35 62 70 83 124 140 155 166 217 310 332 415 434 581 620 830 868 1085 1162 1459 1660 2170 2324 2573 2905 2918 4340 5146 5810 5836 7295 10213 10292 11620 12865 14590 18011 20426 25730 29180 36022 40852 45229 51065 51460 72044 90055 90458 102130 121097 180110 180916 204260 226145 242194 316603 360220 452290 484388 605485 633206 847679 904580 1210970 1266412 1583015 1695358 2421940 3166030 3390716 3754007 4238395 6332060 7508014 8476790 15016028 16953580 18770035 26278049 37540070 52556098 75080140 105112196 131390245 262780490 525560980