Search a number
-
+
89123885 = 5131136067
BaseRepresentation
bin1010100111111…
…10110000101101
320012200221222122
411103332300231
5140303431020
612502122325
72131353254
oct523766055
9205627878
1089123885
1146343104
1225a203a5
1315606236
14bb9d79b
157c57125
hex54fec2d

89123885 has 8 divisors (see below), whose sum is σ = 107765856. Its totient is φ = 70754320.

The previous prime is 89123863. The next prime is 89123887. The reversal of 89123885 is 58832198.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 89123885 - 224 = 72346669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89123887) 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, 67379 + ... + 68688.

It is an arithmetic number, because the mean of its divisors is an integer number (13470732).

Almost surely, 289123885 is an apocalyptic number.

It is an amenable number.

89123885 is a deficient number, since it is larger than the sum of its proper divisors (18641971).

89123885 is a wasteful number, since it uses less digits than its factorization.

89123885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136203.

The product of its digits is 138240, while the sum is 44.

The square root of 89123885 is about 9440.5447406386. The cubic root of 89123885 is about 446.6815726691.

The spelling of 89123885 in words is "eighty-nine million, one hundred twenty-three thousand, eight hundred eighty-five".

Divisors: 1 5 131 655 136067 680335 17824777 89123885