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89209091511 = 3213109756131
BaseRepresentation
bin101001100010101000…
…1101011010110110111
322112021010122101122100
41103011101223112313
52430200011412021
6104552044233143
76305453523621
oct1230521532667
9275233571570
1089209091511
113491922a911
1215357b3b7b3
1385490035a7
144463c5bc11
1524c1bed626
hex14c546b5b7

89209091511 has 12 divisors (see below), whose sum is σ = 128867576760. Its totient is φ = 59468112240.

The previous prime is 89209091509. The next prime is 89209091539. The reversal of 89209091511 is 11519090298.

It is not a de Polignac number, because 89209091511 - 21 = 89209091509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89209091311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 260085 + ... + 496046.

It is an arithmetic number, because the mean of its divisors is an integer number (10738964730).

Almost surely, 289209091511 is an apocalyptic number.

89209091511 is a deficient number, since it is larger than the sum of its proper divisors (39658485249).

89209091511 is a wasteful number, since it uses less digits than its factorization.

89209091511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769246 (or 769243 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 45.

It can be divided in two parts, 89 and 209091511, that added together give a square (209091600 = 144602).

The spelling of 89209091511 in words is "eighty-nine billion, two hundred nine million, ninety-one thousand, five hundred eleven".

Divisors: 1 3 9 13109 39327 117981 756131 2268393 6805179 9912121279 29736363837 89209091511