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89120190 = 23529102437
BaseRepresentation
bin1010100111111…
…01110110111110
320012200202220210
411103331312332
5140303321230
612502053250
72131336425
oct523756676
9205622823
1089120190
1146340355
1225a1a226
1315604653
14bb9c2bc
157c55eb0
hex54fddbe

89120190 has 32 divisors (see below), whose sum is σ = 221266080. Its totient is φ = 22945664.

The previous prime is 89120167. The next prime is 89120197. The reversal of 89120190 is 9102198.

It is a super-2 number, since 2×891201902 = 15884816531272200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89120197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50349 + ... + 52088.

It is an arithmetic number, because the mean of its divisors is an integer number (6914565).

Almost surely, 289120190 is an apocalyptic number.

89120190 is an abundant number, since it is smaller than the sum of its proper divisors (132145890).

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

89120190 is a wasteful number, since it uses less digits than its factorization.

89120190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102476.

The product of its (nonzero) digits is 1296, while the sum is 30.

The square root of 89120190 is about 9440.3490401574. The cubic root of 89120190 is about 446.6753995718.

The spelling of 89120190 in words is "eighty-nine million, one hundred twenty thousand, one hundred ninety".

Divisors: 1 2 3 5 6 10 15 29 30 58 87 145 174 290 435 870 102437 204874 307311 512185 614622 1024370 1536555 2970673 3073110 5941346 8912019 14853365 17824038 29706730 44560095 89120190