Search a number
-
+
29028871886 = 272087993527
BaseRepresentation
bin11011000010010000…
…010110111011001110
32202221001221111001012
4123002100112323032
5433422342400021
621200301245222
72045235224360
oct330220267316
982831844035
1029028871886
1111347050113
125761863812
132978126591
141595494d30
15b4d74c35b
hex6c2416ece

29028871886 has 16 divisors (see below), whose sum is σ = 49787675136. Its totient is φ = 12434971416.

The previous prime is 29028871871. The next prime is 29028871909. The reversal of 29028871886 is 68817882092.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 467546 + ... + 525981.

It is an arithmetic number, because the mean of its divisors is an integer number (3111729696).

Almost surely, 229028871886 is an apocalyptic number.

29028871886 is a deficient number, since it is larger than the sum of its proper divisors (20758803250).

29028871886 is a wasteful number, since it uses less digits than its factorization.

29028871886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995623.

The product of its (nonzero) digits is 6193152, while the sum is 59.

It can be divided in two parts, 2902 and 8871886, that added together give a palindrome (8874788).

The spelling of 29028871886 in words is "twenty-nine billion, twenty-eight million, eight hundred seventy-one thousand, eight hundred eighty-six".

Divisors: 1 2 7 14 2087 4174 14609 29218 993527 1987054 6954689 13909378 2073490849 4146981698 14514435943 29028871886