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189466349 = 432743787
BaseRepresentation
bin10110100101100…
…00011011101101
3111012111212222012
423102300123231
5342000410344
630444531005
74460303012
oct1322603355
9435455865
10189466349
1197a48966
1253550a65
1330339887
141b23d709
151197829e
hexb4b06ed

189466349 has 4 divisors (see below), whose sum is σ = 189514464. Its totient is φ = 189418236.

The previous prime is 189466331. The next prime is 189466357. The reversal of 189466349 is 943664981.

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 not a de Polignac number, because 189466349 - 212 = 189462253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 189466297 and 189466306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189463349) 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, 17567 + ... + 26220.

It is an arithmetic number, because the mean of its divisors is an integer number (47378616).

Almost surely, 2189466349 is an apocalyptic number.

It is an amenable number.

189466349 is a deficient number, since it is larger than the sum of its proper divisors (48115).

189466349 is an equidigital number, since it uses as much as digits as its factorization.

189466349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48114.

The product of its digits is 1119744, while the sum is 50.

The square root of 189466349 is about 13764.6775843098. The cubic root of 189466349 is about 574.3509743104.

The spelling of 189466349 in words is "one hundred eighty-nine million, four hundred sixty-six thousand, three hundred forty-nine".

Divisors: 1 4327 43787 189466349