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85884280 = 2352147107
BaseRepresentation
bin1010001111001…
…11110101111000
312222121101002021
411013213311320
5133441244110
612304444224
72062001326
oct507476570
9188541067
1085884280
1144530149
1224919674
1314a40801
14b598d16
1578172da
hex51e7d78

85884280 has 16 divisors (see below), whose sum is σ = 193239720. Its totient is φ = 34353696.

The previous prime is 85884269. The next prime is 85884301. The reversal of 85884280 is 8248858.

It is a happy number.

It is a super-2 number, since 2×858842802 = 14752219102236800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1073514 + ... + 1073593.

Almost surely, 285884280 is an apocalyptic number.

It is an amenable number.

85884280 is an abundant number, since it is smaller than the sum of its proper divisors (107355440).

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

85884280 is a wasteful number, since it uses less digits than its factorization.

85884280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2147118 (or 2147114 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 43.

The square root of 85884280 is about 9267.3771909856. The cubic root of 85884280 is about 441.2024272798.

The spelling of 85884280 in words is "eighty-five million, eight hundred eighty-four thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 2147107 4294214 8588428 10735535 17176856 21471070 42942140 85884280