Search a number
-
+
80141690 = 2519141959
BaseRepresentation
bin1001100011011…
…01110101111010
312120210121201202
410301231311322
5131004013230
611541414202
71662123146
oct461556572
9176717652
1080141690
1141268702
1222a0a362
13137aca25
14a902226
157080a45
hex4c6dd7a

80141690 has 16 divisors (see below), whose sum is σ = 145013760. Its totient is φ = 31888080.

The previous prime is 80141657. The next prime is 80141693. The reversal of 80141690 is 9614108.

It is a super-2 number, since 2×801416902 = 12845380952112200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80141693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19070 + ... + 22889.

It is an arithmetic number, because the mean of its divisors is an integer number (9063360).

Almost surely, 280141690 is an apocalyptic number.

80141690 is a deficient number, since it is larger than the sum of its proper divisors (64872070).

80141690 is a wasteful number, since it uses less digits than its factorization.

80141690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42157.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 80141690 is about 8952.1891177521. The cubic root of 80141690 is about 431.1411728475.

Adding to 80141690 its reverse (9614108), we get a palindrome (89755798).

The spelling of 80141690 in words is "eighty million, one hundred forty-one thousand, six hundred ninety".

Divisors: 1 2 5 10 191 382 955 1910 41959 83918 209795 419590 8014169 16028338 40070845 80141690