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89225661 = 375038447
BaseRepresentation
bin1010101000101…
…11100110111101
320012220010121010
411110113212331
5140320210121
612504225433
72132256060
oct524274675
9205803533
1089225661
1146402618
1225a6b279
1315640665
14bbc88d7
157c77376
hex55179bd

89225661 has 16 divisors (see below), whose sum is σ = 136249344. Its totient is φ = 50878704.

The previous prime is 89225627. The next prime is 89225677. The reversal of 89225661 is 16652298.

It is not a de Polignac number, because 89225661 - 26 = 89225597 is a prime.

It is a super-2 number, since 2×892256612 = 15922437161773842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89225621) 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, 6340 + ... + 14786.

It is an arithmetic number, because the mean of its divisors is an integer number (8515584).

Almost surely, 289225661 is an apocalyptic number.

It is an amenable number.

89225661 is a deficient number, since it is larger than the sum of its proper divisors (47023683).

89225661 is a wasteful number, since it uses less digits than its factorization.

89225661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8960.

The product of its digits is 51840, while the sum is 39.

The square root of 89225661 is about 9445.9335695314. The cubic root of 89225661 is about 446.8515389642.

The spelling of 89225661 in words is "eighty-nine million, two hundred twenty-five thousand, six hundred sixty-one".

Divisors: 1 3 7 21 503 1509 3521 8447 10563 25341 59129 177387 4248841 12746523 29741887 89225661