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85529080 = 23571323497
BaseRepresentation
bin1010001100100…
…01000111111000
312221221022211201
411012101013320
5133343412310
612253103544
72055661630
oct506210770
9187838751
1085529080
114430829a
1224787bb4
1314947c30
14b5056c0
157796e3a
hex51911f8

85529080 has 64 divisors (see below), whose sum is σ = 236859840. Its totient is φ = 27067392.

The previous prime is 85529077. The next prime is 85529141. The reversal of 85529080 is 8092558.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8109 + ... + 15388.

It is an arithmetic number, because the mean of its divisors is an integer number (3700935).

Almost surely, 285529080 is an apocalyptic number.

It is an amenable number.

85529080 is an abundant number, since it is smaller than the sum of its proper divisors (151330760).

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

85529080 is a wasteful number, since it uses less digits than its factorization.

85529080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23528 (or 23524 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 37.

The square root of 85529080 is about 9248.1933370794. The cubic root of 85529080 is about 440.5933455120.

The spelling of 85529080 in words is "eighty-five million, five hundred twenty-nine thousand, eighty".

Divisors: 1 2 4 5 7 8 10 13 14 20 26 28 35 40 52 56 65 70 91 104 130 140 182 260 280 364 455 520 728 910 1820 3640 23497 46994 93988 117485 164479 187976 234970 305461 328958 469940 610922 657916 822395 939880 1221844 1315832 1527305 1644790 2138227 2443688 3054610 3289580 4276454 6109220 6579160 8552908 10691135 12218440 17105816 21382270 42764540 85529080