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89612149 = 11791011021
BaseRepresentation
bin1010101011101…
…01111101110101
320020121202202111
411111311331311
5140420042044
612520411021
72135455624
oct525657565
9206552674
1089612149
1146646a30
1226016a71
1315747553
14bc896bb
157d01b34
hex5575f75

89612149 has 16 divisors (see below), whose sum is σ = 100074240. Its totient is φ = 79560000.

The previous prime is 89612141. The next prime is 89612161. The reversal of 89612149 is 94121698.

It is a cyclic number.

It is not a de Polignac number, because 89612149 - 23 = 89612141 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89612141) 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, 87259 + ... + 88279.

It is an arithmetic number, because the mean of its divisors is an integer number (6254640).

Almost surely, 289612149 is an apocalyptic number.

It is an amenable number.

89612149 is a deficient number, since it is larger than the sum of its proper divisors (10462091).

89612149 is a wasteful number, since it uses less digits than its factorization.

89612149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212.

The product of its digits is 31104, while the sum is 40.

The square root of 89612149 is about 9466.3693673974. The cubic root of 89612149 is about 447.4958005494.

The spelling of 89612149 in words is "eighty-nine million, six hundred twelve thousand, one hundred forty-nine".

Divisors: 1 11 79 101 869 1021 1111 7979 11231 80659 87769 103121 887249 1134331 8146559 89612149