Search a number
-
+
80235090 = 23351322859
BaseRepresentation
bin1001100100001…
…00101001010010
312120222100212000
410302010221102
5131020010330
611543414430
71662662355
oct462045122
9176870760
1080235090
11413218a1
1222a54416
13138133b0
14a92829c
15709d560
hex4c84a52

80235090 has 64 divisors (see below), whose sum is σ = 230428800. Its totient is φ = 19749312.

The previous prime is 80235061. The next prime is 80235091. The reversal of 80235090 is 9053208.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (80235091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7920 + ... + 14939.

It is an arithmetic number, because the mean of its divisors is an integer number (3600450).

Almost surely, 280235090 is an apocalyptic number.

80235090 is an abundant number, since it is smaller than the sum of its proper divisors (150193710).

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

80235090 is a wasteful number, since it uses less digits than its factorization.

80235090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22888 (or 22882 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 80235090 is about 8957.4041998784. The cubic root of 80235090 is about 431.3085969526.

Adding to 80235090 its reverse (9053208), we get a palindrome (89288298).

The spelling of 80235090 in words is "eighty million, two hundred thirty-five thousand, ninety".

Divisors: 1 2 3 5 6 9 10 13 15 18 26 27 30 39 45 54 65 78 90 117 130 135 195 234 270 351 390 585 702 1170 1755 3510 22859 45718 68577 114295 137154 205731 228590 297167 342885 411462 594334 617193 685770 891501 1028655 1234386 1485835 1783002 2057310 2674503 2971670 3085965 4457505 5349006 6171930 8023509 8915010 13372515 16047018 26745030 40117545 80235090