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194662049 = 19711131277
BaseRepresentation
bin10111001101001…
…00111010100001
3111120021212010112
423212210322201
5344313141144
631152141105
74552412561
oct1346447241
9446255115
10194662049
119a97752a
1255237795
133143875a
141bbd2da1
151215299e
hexb9a4ea1

194662049 has 16 divisors (see below), whose sum is σ = 209796480. Its totient is φ = 180069120.

The previous prime is 194662037. The next prime is 194662073. The reversal of 194662049 is 940266491.

194662049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-194662049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 194661997 and 194662015.

It is not an unprimeable number, because it can be changed into a prime (194662649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151799 + ... + 153075.

It is an arithmetic number, because the mean of its divisors is an integer number (13112280).

Almost surely, 2194662049 is an apocalyptic number.

194662049 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

194662049 is a deficient number, since it is larger than the sum of its proper divisors (15134431).

194662049 is a wasteful number, since it uses less digits than its factorization.

194662049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1480.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 194662049 is about 13952.1342095036. The cubic root of 194662049 is about 579.5538076460.

The spelling of 194662049 in words is "one hundred ninety-four million, six hundred sixty-two thousand, forty-nine".

Divisors: 1 19 71 113 1277 1349 2147 8023 24263 90667 144301 152437 1722673 2741719 10245371 194662049