Search a number
-
+
89489290 = 2511978387
BaseRepresentation
bin1010101010101…
…11111110001010
320020101112020011
411111113332022
5140402124130
612514022134
72134434502
oct525277612
9206345204
1089489290
11465726a0
1225b7794a
1315703657
14bc56a02
157cca52a
hex5557f8a

89489290 has 32 divisors (see below), whose sum is σ = 177557184. Its totient is φ = 32202240.

The previous prime is 89489263. The next prime is 89489293. The reversal of 89489290 is 9298498.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (89489293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6477 + ... + 14863.

It is an arithmetic number, because the mean of its divisors is an integer number (5548662).

Almost surely, 289489290 is an apocalyptic number.

89489290 is a deficient number, since it is larger than the sum of its proper divisors (88067894).

89489290 is a wasteful number, since it uses less digits than its factorization.

89489290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8502.

The product of its (nonzero) digits is 373248, while the sum is 49.

The square root of 89489290 is about 9459.8779061889. The cubic root of 89489290 is about 447.2912001992.

The spelling of 89489290 in words is "eighty-nine million, four hundred eighty-nine thousand, two hundred ninety".

Divisors: 1 2 5 10 11 22 55 97 110 194 485 970 1067 2134 5335 8387 10670 16774 41935 83870 92257 184514 461285 813539 922570 1627078 4067695 8135390 8948929 17897858 44744645 89489290