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293913 = 32172113
BaseRepresentation
bin1000111110000011001
3112221011200
41013300121
533401123
610144413
72332614
oct1076031
9487150
10293913
11190904
12122109
13a3a19
147917b
155c143
hex47c19

293913 has 18 divisors (see below), whose sum is σ = 454974. Its totient is φ = 182784.

The previous prime is 293899. The next prime is 293941. The reversal of 293913 is 319392.

It can be written as a sum of positive squares in 3 ways, for example, as 36864 + 257049 = 192^2 + 507^2 .

It is not a de Polignac number, because 293913 - 213 = 285721 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (293983) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2545 + ... + 2657.

2293913 is an apocalyptic number.

It is an amenable number.

293913 is a deficient number, since it is larger than the sum of its proper divisors (161061).

293913 is a wasteful number, since it uses less digits than its factorization.

293913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153 (or 133 counting only the distinct ones).

The product of its digits is 1458, while the sum is 27.

The square root of 293913 is about 542.1374364495. The cubic root of 293913 is about 66.4874380327.

The spelling of 293913 in words is "two hundred ninety-three thousand, nine hundred thirteen".

Divisors: 1 3 9 17 51 113 153 289 339 867 1017 1921 2601 5763 17289 32657 97971 293913