Search a number
-
+
29140180 = 2258091801
BaseRepresentation
bin110111100101…
…0010011010100
32000211110210221
41233022103110
524424441210
62520324124
7502454536
oct157122324
960743727
1029140180
11154a34a3
129913644
136063814
143c27856
1528591da
hex1bca4d4

29140180 has 24 divisors (see below), whose sum is σ = 61304040. Its totient is φ = 11635200.

The previous prime is 29140151. The next prime is 29140183. The reversal of 29140180 is 8104192.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3048516 + 26091664 = 1746^2 + 5108^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29140183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15280 + ... + 17080.

It is an arithmetic number, because the mean of its divisors is an integer number (2554335).

Almost surely, 229140180 is an apocalyptic number.

29140180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29140180 is an abundant number, since it is smaller than the sum of its proper divisors (32163860).

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

29140180 is a wasteful number, since it uses less digits than its factorization.

29140180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2619 (or 2617 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 29140180 is about 5398.1645028658. The cubic root of 29140180 is about 307.7259185399.

The spelling of 29140180 in words is "twenty-nine million, one hundred forty thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 809 1618 1801 3236 3602 4045 7204 8090 9005 16180 18010 36020 1457009 2914018 5828036 7285045 14570090 29140180