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89906365 = 552134513
BaseRepresentation
bin1010101101111…
…01110010111101
320021011201100101
411112331302331
5141004000430
612531001101
72141122453
oct526756275
9207151311
1089906365
1146827a8a
1226139191
131581b443
14bd249d3
157d5ddca
hex55bdcbd

89906365 has 8 divisors (see below), whose sum is σ = 108097848. Its totient is φ = 71784960.

The previous prime is 89906363. The next prime is 89906381. The reversal of 89906365 is 56360998.

It can be written as a sum of positive squares in 4 ways, for example, as 15705369 + 74200996 = 3963^2 + 8614^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 89906365 - 21 = 89906363 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89906363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14652 + ... + 19861.

It is an arithmetic number, because the mean of its divisors is an integer number (13512231).

Almost surely, 289906365 is an apocalyptic number.

It is an amenable number.

89906365 is a deficient number, since it is larger than the sum of its proper divisors (18191483).

89906365 is a wasteful number, since it uses less digits than its factorization.

89906365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35039.

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 89906365 is about 9481.8966984459. The cubic root of 89906365 is about 447.9850072709.

The spelling of 89906365 in words is "eighty-nine million, nine hundred six thousand, three hundred sixty-five".

Divisors: 1 5 521 2605 34513 172565 17981273 89906365