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85602280 = 2352140057
BaseRepresentation
bin1010001101000…
…10111111101000
312222002001020211
411012202333220
5133403233110
612254430504
72056415221
oct506427750
9188061224
1085602280
1144358295
1224802434
131497234a
14b524248
1577ad98a
hex51a2fe8

85602280 has 16 divisors (see below), whose sum is σ = 192605220. Its totient is φ = 34240896.

The previous prime is 85602271. The next prime is 85602281. The reversal of 85602280 is 8220658.

It can be written as a sum of positive squares in 2 ways, for example, as 82919236 + 2683044 = 9106^2 + 1638^2 .

It is not an unprimeable number, because it can be changed into a prime (85602281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1069989 + ... + 1070068.

Almost surely, 285602280 is an apocalyptic number.

It is an amenable number.

85602280 is an abundant number, since it is smaller than the sum of its proper divisors (107002940).

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

85602280 is a wasteful number, since it uses less digits than its factorization.

85602280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2140068 (or 2140064 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 85602280 is about 9252.1500204007. The cubic root of 85602280 is about 440.7190035006.

The spelling of 85602280 in words is "eighty-five million, six hundred two thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 2140057 4280114 8560228 10700285 17120456 21400570 42801140 85602280