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290348 = 22292503
BaseRepresentation
bin1000110111000101100
3112202021122
41012320230
533242343
610120112
72316332
oct1067054
9482248
10290348
11189163
12120038
13a2206
1477b52
155b068
hex46e2c

290348 has 12 divisors (see below), whose sum is σ = 525840. Its totient is φ = 140112.

The previous prime is 290347. The next prime is 290351. The reversal of 290348 is 843092.

It is a super-2 number, since 2×2903482 = 168603922208, which contains 22 as substring.

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 290348.

It is not an unprimeable number, because it can be changed into a prime (290347) 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, 1136 + ... + 1367.

It is an arithmetic number, because the mean of its divisors is an integer number (43820).

2290348 is an apocalyptic number.

It is an amenable number.

290348 is a deficient number, since it is larger than the sum of its proper divisors (235492).

290348 is a wasteful number, since it uses less digits than its factorization.

290348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2536 (or 2534 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 290348 is about 538.8394937270. The cubic root of 290348 is about 66.2175253205.

The spelling of 290348 in words is "two hundred ninety thousand, three hundred forty-eight".

Divisors: 1 2 4 29 58 116 2503 5006 10012 72587 145174 290348