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194920541 = 721127031
BaseRepresentation
bin10111001111001…
…00000001011101
3111120202222201022
423213210001131
5344344424131
631201453525
74554540314
oct1347440135
9446688638
10194920541
11a0033762
12553412a5
13314c92ca
141bc5d27b
15121a437b
hexb9e405d

194920541 has 4 divisors (see below), whose sum is σ = 194954784. Its totient is φ = 194886300.

The previous prime is 194920499. The next prime is 194920549. The reversal of 194920541 is 145029491.

194920541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-194920541 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 (194920549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6305 + ... + 20726.

It is an arithmetic number, because the mean of its divisors is an integer number (48738696).

Almost surely, 2194920541 is an apocalyptic number.

It is an amenable number.

194920541 is a deficient number, since it is larger than the sum of its proper divisors (34243).

194920541 is an equidigital number, since it uses as much as digits as its factorization.

194920541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34242.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 194920541 is about 13961.3946652904. The cubic root of 194920541 is about 579.8102242777.

The spelling of 194920541 in words is "one hundred ninety-four million, nine hundred twenty thousand, five hundred forty-one".

Divisors: 1 7211 27031 194920541