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292990 = 2583353
BaseRepresentation
bin1000111100001111110
3112212220111
41013201332
533333430
610140234
72330125
oct1074176
9485814
10292990
11190145
1212167a
13a3489
1478abc
155bc2a
hex4787e

292990 has 16 divisors (see below), whose sum is σ = 535248. Its totient is φ = 115456.

The previous prime is 292979. The next prime is 292993. The reversal of 292990 is 99292.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (292993) by changing a digit.

292990 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 654 + ... + 1006.

It is an arithmetic number, because the mean of its divisors is an integer number (33453).

2292990 is an apocalyptic number.

292990 is a deficient number, since it is larger than the sum of its proper divisors (242258).

292990 is a wasteful number, since it uses less digits than its factorization.

292990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 292990 is about 541.2855069185. The cubic root of 292990 is about 66.4177663303.

The spelling of 292990 in words is "two hundred ninety-two thousand, nine hundred ninety".

Divisors: 1 2 5 10 83 166 353 415 706 830 1765 3530 29299 58598 146495 292990