Search a number
-
+
17993053 = 135923459
BaseRepresentation
bin100010010100…
…0110101011101
31020212010211101
41010220311131
514101234203
61441353101
7305636611
oct104506535
936763741
1017993053
11a17a4a1
126038791
13395caa0
142565341
1518a641d
hex1128d5d

17993053 has 8 divisors (see below), whose sum is σ = 19706400. Its totient is φ = 16326768.

The previous prime is 17993047. The next prime is 17993071. The reversal of 17993053 is 35039971.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-17993053 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 (17993093) 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, 10963 + ... + 12496.

It is an arithmetic number, because the mean of its divisors is an integer number (2463300).

Almost surely, 217993053 is an apocalyptic number.

17993053 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

17993053 is a deficient number, since it is larger than the sum of its proper divisors (1713347).

17993053 is a wasteful number, since it uses less digits than its factorization.

17993053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23531.

The product of its (nonzero) digits is 25515, while the sum is 37.

The square root of 17993053 is about 4241.8218963082. The cubic root of 17993053 is about 262.0404197298.

The spelling of 17993053 in words is "seventeen million, nine hundred ninety-three thousand, fifty-three".

Divisors: 1 13 59 767 23459 304967 1384081 17993053