Search a number
-
+
192944281 = 6130710303
BaseRepresentation
bin10111000000000…
…01100010011001
3111110001120210111
423200001202121
5343343204111
631051244321
74531666525
oct1340014231
9443046714
10192944281
1199a03992
12547496a1
1330c8691a
141b8a6d85
1511e13a21
hexb801899

192944281 has 8 divisors (see below), whose sum is σ = 196765184. Its totient is φ = 189144720.

The previous prime is 192944249. The next prime is 192944287. The reversal of 192944281 is 182449291.

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 192944281 - 25 = 192944249 is a prime.

It is a super-2 number, since 2×1929442812 = 74454991141213922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (192944287) 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, 13576 + ... + 23878.

It is an arithmetic number, because the mean of its divisors is an integer number (24595648).

Almost surely, 2192944281 is an apocalyptic number.

It is an amenable number.

192944281 is a deficient number, since it is larger than the sum of its proper divisors (3820903).

192944281 is a wasteful number, since it uses less digits than its factorization.

192944281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10671.

The product of its digits is 41472, while the sum is 40.

The square root of 192944281 is about 13890.4384740007. The cubic root of 192944281 is about 577.8440380521.

The spelling of 192944281 in words is "one hundred ninety-two million, nine hundred forty-four thousand, two hundred eighty-one".

Divisors: 1 61 307 10303 18727 628483 3163021 192944281