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289650370 = 2528965037
BaseRepresentation
bin10001010000111…
…011011011000010
3202012000202121111
4101100323123002
51043122302440
644424113534
710114662502
oct2120733302
9665022544
10289650370
11139555679
12810058aa
1348016069
142a67ba02
151a6674ea
hex1143b6c2

289650370 has 8 divisors (see below), whose sum is σ = 521370684. Its totient is φ = 115860144.

The previous prime is 289650343. The next prime is 289650379. The reversal of 289650370 is 73056982.

289650370 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 264680361 + 24970009 = 16269^2 + 4997^2 .

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

It is a super-2 number, since 2×2896503702 = 167794673682273800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (289650379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14482509 + ... + 14482528.

Almost surely, 2289650370 is an apocalyptic number.

289650370 is a deficient number, since it is larger than the sum of its proper divisors (231720314).

289650370 is a wasteful number, since it uses less digits than its factorization.

289650370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28965044.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 289650370 is about 17019.1177797205. The cubic root of 289650370 is about 661.6444834616.

The spelling of 289650370 in words is "two hundred eighty-nine million, six hundred fifty thousand, three hundred seventy".

Divisors: 1 2 5 10 28965037 57930074 144825185 289650370