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89744238 = 23213935869
BaseRepresentation
bin1010101100101…
…10001101101110
320020212110221200
411112112031232
5140433303423
612523310330
72136546003
oct526261556
9206773850
1089744238
11467271a1
122607b3a6
13157926cc
14bcc18aa
157d2ad43
hex559636e

89744238 has 24 divisors (see below), whose sum is σ = 195850200. Its totient is φ = 29698704.

The previous prime is 89744231. The next prime is 89744243. The reversal of 89744238 is 83244798.

It is a junction number, because it is equal to n+sod(n) for n = 89744193 and 89744202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89744231) 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, 15433 + ... + 20436.

It is an arithmetic number, because the mean of its divisors is an integer number (8160425).

Almost surely, 289744238 is an apocalyptic number.

89744238 is an abundant number, since it is smaller than the sum of its proper divisors (106105962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89744238 is a wasteful number, since it uses less digits than its factorization.

89744238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36016 (or 36013 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 89744238 is about 9473.3435491383. The cubic root of 89744238 is about 447.7155633632.

The spelling of 89744238 in words is "eighty-nine million, seven hundred forty-four thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 9 18 139 278 417 834 1251 2502 35869 71738 107607 215214 322821 645642 4985791 9971582 14957373 29914746 44872119 89744238