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290153 = 2571129
BaseRepresentation
bin1000110110101101001
3112202000102
41012311221
533241103
610115145
72315633
oct1066551
9482012
10290153
11188aa6
1211bab5
13a20b6
1477a53
155ae88
hex46d69

290153 has 4 divisors (see below), whose sum is σ = 291540. Its totient is φ = 288768.

The previous prime is 290141. The next prime is 290161. The reversal of 290153 is 351092.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 169744 + 120409 = 412^2 + 347^2 .

It is a cyclic number.

It is not a de Polignac number, because 290153 - 24 = 290137 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308 + ... + 821.

It is an arithmetic number, because the mean of its divisors is an integer number (72885).

2290153 is an apocalyptic number.

It is an amenable number.

290153 is a deficient number, since it is larger than the sum of its proper divisors (1387).

290153 is a wasteful number, since it uses less digits than its factorization.

290153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 290153 is about 538.6585189153. The cubic root of 290153 is about 66.2026979304.

The spelling of 290153 in words is "two hundred ninety thousand, one hundred fifty-three".

Divisors: 1 257 1129 290153