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289387062 = 23219846161
BaseRepresentation
bin10001001111111…
…011001000110110
3202011112101102100
4101033323020312
51043040341222
644414322530
710112515026
oct2117731066
9664471370
10289387062
11139395868
1280ab9446
1347c53263
142a60da86
151a6144ac
hex113fb236

289387062 has 24 divisors (see below), whose sum is σ = 660006360. Its totient is φ = 91385280.

The previous prime is 289387057. The next prime is 289387093. The reversal of 289387062 is 260783982.

It is a junction number, because it is equal to n+sod(n) for n = 289386999 and 289387017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 422739 + ... + 423422.

It is an arithmetic number, because the mean of its divisors is an integer number (27500265).

Almost surely, 2289387062 is an apocalyptic number.

289387062 is an abundant number, since it is smaller than the sum of its proper divisors (370619298).

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

289387062 is a wasteful number, since it uses less digits than its factorization.

289387062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846188 (or 846185 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 289387062 is about 17011.3803672718. The cubic root of 289387062 is about 661.4439323592.

The spelling of 289387062 in words is "two hundred eighty-nine million, three hundred eighty-seven thousand, sixty-two".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 342 846161 1692322 2538483 5076966 7615449 15230898 16077059 32154118 48231177 96462354 144693531 289387062