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89689611 = 31113919553
BaseRepresentation
bin1010101100010…
…00111000001011
320020202201000110
411112020320023
5140430031421
612522205403
72136230514
oct526107013
9206681013
1089689611
114669a150
1226053863
131577389b
14bca9a0b
157d19a76
hex5588e0b

89689611 has 16 divisors (see below), whose sum is σ = 131402880. Its totient is φ = 53963520.

The previous prime is 89689573. The next prime is 89689631. The reversal of 89689611 is 11698698.

It is not a de Polignac number, because 89689611 - 215 = 89656843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89689631) 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, 5190 + ... + 14363.

It is an arithmetic number, because the mean of its divisors is an integer number (8212680).

Almost surely, 289689611 is an apocalyptic number.

89689611 is a deficient number, since it is larger than the sum of its proper divisors (41713269).

89689611 is a wasteful number, since it uses less digits than its factorization.

89689611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19706.

The product of its digits is 186624, while the sum is 48.

The square root of 89689611 is about 9470.4599149144. The cubic root of 89689611 is about 447.6247039659.

The spelling of 89689611 in words is "eighty-nine million, six hundred eighty-nine thousand, six hundred eleven".

Divisors: 1 3 11 33 139 417 1529 4587 19553 58659 215083 645249 2717867 8153601 29896537 89689611