Search a number
-
+
80863100 = 2252863937
BaseRepresentation
bin1001101000111…
…01111101111100
312122011021022122
410310131331330
5131200104400
612005102112
72001216323
oct464357574
9178137278
1080863100
114171070a
12230b7938
13139a31b6
14aa4d0ba
157174685
hex4d1df7c

80863100 has 36 divisors (see below), whose sum is σ = 175863744. Its totient is φ = 32273280.

The previous prime is 80863087. The next prime is 80863103. The reversal of 80863100 is 136808.

It is a super-2 number, since 2×808631002 = 13077681883220000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80863100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80863103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85832 + ... + 86768.

It is an arithmetic number, because the mean of its divisors is an integer number (4885104).

Almost surely, 280863100 is an apocalyptic number.

It is an amenable number.

80863100 is an abundant number, since it is smaller than the sum of its proper divisors (95000644).

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

80863100 is a wasteful number, since it uses less digits than its factorization.

80863100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814 (or 1807 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 80863100 is about 8992.3912281439. The cubic root of 80863100 is about 432.4309756532.

Adding to 80863100 its reverse (136808), we get a palindrome (80999908).

The spelling of 80863100 in words is "eighty million, eight hundred sixty-three thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 863 937 1726 1874 3452 3748 4315 4685 8630 9370 17260 18740 21575 23425 43150 46850 86300 93700 808631 1617262 3234524 4043155 8086310 16172620 20215775 40431550 80863100