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80865300 = 223521032617
BaseRepresentation
bin1001101000111…
…10100000010100
312122011101100010
410310132200110
5131200142200
612005120220
72001225615
oct464364024
9178141303
1080865300
114171232a
12230b9070
13139a41b9
14aa4dc0c
157175150
hex4d1e814

80865300 has 72 divisors (see below), whose sum is σ = 236332096. Its totient is φ = 21346560.

The previous prime is 80865299. The next prime is 80865319. The reversal of 80865300 is 356808.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29592 + ... + 32208.

Almost surely, 280865300 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 80865300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118166048).

80865300 is an abundant number, since it is smaller than the sum of its proper divisors (155466796).

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

80865300 is a wasteful number, since it uses less digits than its factorization.

80865300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2737 (or 2730 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 80865300 is about 8992.5135529506. The cubic root of 80865300 is about 432.4348972586.

The spelling of 80865300 in words is "eighty million, eight hundred sixty-five thousand, three hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 50 60 75 100 103 150 206 300 309 412 515 618 1030 1236 1545 2060 2575 2617 3090 5150 5234 6180 7725 7851 10300 10468 13085 15450 15702 26170 30900 31404 39255 52340 65425 78510 130850 157020 196275 261700 269551 392550 539102 785100 808653 1078204 1347755 1617306 2695510 3234612 4043265 5391020 6738775 8086530 13477550 16173060 20216325 26955100 40432650 80865300