Search a number
-
+
89879712 = 2531372019
BaseRepresentation
bin1010101101101…
…11010010100000
320021010100210020
411112313102200
5141002122322
612530233440
72140651656
oct526672240
9207110706
1089879712
1146809a5a
1226125880
131580c280
14bd18dd6
157d5605c
hex55b74a0

89879712 has 48 divisors (see below), whose sum is σ = 254086560. Its totient is φ = 27654912.

The previous prime is 89879707. The next prime is 89879719. The reversal of 89879712 is 21797898.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (89879719) 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, 34762 + ... + 37257.

It is an arithmetic number, because the mean of its divisors is an integer number (5293470).

Almost surely, 289879712 is an apocalyptic number.

It is an amenable number.

89879712 is an abundant number, since it is smaller than the sum of its proper divisors (164206848).

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

89879712 is a wasteful number, since it uses less digits than its factorization.

89879712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72045 (or 72037 counting only the distinct ones).

The product of its digits is 508032, while the sum is 51.

The square root of 89879712 is about 9480.4911265187. The cubic root of 89879712 is about 447.9407340818.

It can be divided in two parts, 89 and 879712, that added together give a triangular number (879801 = T1326).

The spelling of 89879712 in words is "eighty-nine million, eight hundred seventy-nine thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 78 96 104 156 208 312 416 624 1248 72019 144038 216057 288076 432114 576152 864228 936247 1152304 1728456 1872494 2304608 2808741 3456912 3744988 5617482 6913824 7489976 11234964 14979952 22469928 29959904 44939856 89879712