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85830080 = 265738317
BaseRepresentation
bin1010001110110…
…10100111000000
312222111121201212
411013122213000
5133433030310
612303345252
72061354320
oct507324700
9188447655
1085830080
11444a3456
12248b2228
1314a21c3b
14b583280
157806205
hex51da9c0

85830080 has 56 divisors (see below), whose sum is σ = 233586528. Its totient is φ = 29426688.

The previous prime is 85830077. The next prime is 85830113. The reversal of 85830080 is 8003858.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16919 + ... + 21398.

It is an arithmetic number, because the mean of its divisors is an integer number (4171188).

Almost surely, 285830080 is an apocalyptic number.

85830080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

85830080 is an abundant number, since it is smaller than the sum of its proper divisors (147756448).

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

85830080 is a wasteful number, since it uses less digits than its factorization.

85830080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38341 (or 38331 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 85830080 is about 9264.4524932669. The cubic root of 85830080 is about 441.1095961520.

The spelling of 85830080 in words is "eighty-five million, eight hundred thirty thousand, eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 80 112 140 160 224 280 320 448 560 1120 2240 38317 76634 153268 191585 268219 306536 383170 536438 613072 766340 1072876 1226144 1341095 1532680 2145752 2452288 2682190 3065360 4291504 5364380 6130720 8583008 10728760 12261440 17166016 21457520 42915040 85830080