Search a number
-
+
194972 = 2279617
BaseRepresentation
bin101111100110011100
3100220110012
4233212130
522214342
64102352
71441301
oct574634
9326405
10194972
11123538
12949b8
136a98b
14510a8
153cb82
hex2f99c

194972 has 12 divisors (see below), whose sum is σ = 346080. Its totient is φ = 96096.

The previous prime is 194963. The next prime is 194977. The reversal of 194972 is 279491.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8 + ... + 624.

It is an arithmetic number, because the mean of its divisors is an integer number (28840).

2194972 is an apocalyptic number.

It is an amenable number.

194972 is a deficient number, since it is larger than the sum of its proper divisors (151108).

194972 is a wasteful number, since it uses less digits than its factorization.

194972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700 (or 698 counting only the distinct ones).

The product of its digits is 4536, while the sum is 32.

The square root of 194972 is about 441.5563384213. The cubic root of 194972 is about 57.9861243065.

The spelling of 194972 in words is "one hundred ninety-four thousand, nine hundred seventy-two".

Divisors: 1 2 4 79 158 316 617 1234 2468 48743 97486 194972