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89620230 = 2357426763
BaseRepresentation
bin1010101011101…
…11111100000110
320020122011211210
411111313330012
5140420321410
612520512250
72135521320
oct525677406
9206564753
1089620230
1146652007
122601b686
131574b12b
14bc8c610
157d04220
hex5577f06

89620230 has 32 divisors (see below), whose sum is σ = 245816064. Its totient is φ = 20484576.

The previous prime is 89620183. The next prime is 89620231. The reversal of 89620230 is 3202698.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89620231) 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, 213172 + ... + 213591.

It is an arithmetic number, because the mean of its divisors is an integer number (7681752).

Almost surely, 289620230 is an apocalyptic number.

89620230 is an abundant number, since it is smaller than the sum of its proper divisors (156195834).

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

89620230 is a wasteful number, since it uses less digits than its factorization.

89620230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426780.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 89620230 is about 9466.7961845600. The cubic root of 89620230 is about 447.5092514967.

The spelling of 89620230 in words is "eighty-nine million, six hundred twenty thousand, two hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 426763 853526 1280289 2133815 2560578 2987341 4267630 5974682 6401445 8962023 12802890 14936705 17924046 29873410 44810115 89620230