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122943 = 3107383
BaseRepresentation
bin11110000000111111
320020122110
4132000333
512413233
62345103
71021302
oct360077
9206573
10122943
1184407
125b193
1343c62
1432b39
1526663
hex1e03f

122943 has 8 divisors (see below), whose sum is σ = 165888. Its totient is φ = 80984.

The previous prime is 122939. The next prime is 122953. The reversal of 122943 is 349221.

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

It is a cyclic number.

It is not a de Polignac number, because 122943 - 22 = 122939 is a prime.

It is a super-2 number, since 2×1229432 = 30229962498, which contains 22 as substring.

122943 is a lucky number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130 + ... + 512.

It is an arithmetic number, because the mean of its divisors is an integer number (20736).

2122943 is an apocalyptic number.

122943 is a deficient number, since it is larger than the sum of its proper divisors (42945).

122943 is a wasteful number, since it uses less digits than its factorization.

122943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493.

The product of its digits is 432, while the sum is 21.

The square root of 122943 is about 350.6322860206. The cubic root of 122943 is about 49.7242149825.

The spelling of 122943 in words is "one hundred twenty-two thousand, nine hundred forty-three".

Divisors: 1 3 107 321 383 1149 40981 122943