Search a number
-
+
196238549 = 1322766499
BaseRepresentation
bin10111011001001…
…01110011010101
3111200020221200102
423230211303111
5400214113144
631250023445
74602000023
oct1354456325
9450227612
10196238549
11a0853a21
1255877b85
133186b1b0
141c0c3713
1512364b4e
hexbb25cd5

196238549 has 8 divisors (see below), whose sum is σ = 212268000. Its totient is φ = 180342576.

The previous prime is 196238521. The next prime is 196238591. The reversal of 196238549 is 945832691.

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-196238549 is a prime.

It is a super-2 number, since 2×1962385492 = 77019136227250802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196238519) 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, 30299 + ... + 36200.

It is an arithmetic number, because the mean of its divisors is an integer number (26533500).

Almost surely, 2196238549 is an apocalyptic number.

It is an amenable number.

196238549 is a deficient number, since it is larger than the sum of its proper divisors (16029451).

196238549 is a wasteful number, since it uses less digits than its factorization.

196238549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66739.

The product of its digits is 466560, while the sum is 47.

The square root of 196238549 is about 14008.5170164440. The cubic root of 196238549 is about 581.1141376835.

The spelling of 196238549 in words is "one hundred ninety-six million, two hundred thirty-eight thousand, five hundred forty-nine".

Divisors: 1 13 227 2951 66499 864487 15095273 196238549