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189928041 = 3312042237
BaseRepresentation
bin10110101001000…
…01001001101001
3111020101100021220
423110201021221
5342110144131
630502452253
74464235032
oct1324411151
9436340256
10189928041
1198233826
1253734089
133046ba74
141b31da89
1511a19e96
hexb521269

189928041 has 8 divisors (see below), whose sum is σ = 261406464. Its totient is φ = 122534160.

The previous prime is 189928001. The next prime is 189928051. The reversal of 189928041 is 140829981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 189928041 - 26 = 189927977 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 189927984 and 189928002.

It is not an unprimeable number, because it can be changed into a prime (189928001) 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, 1021026 + ... + 1021211.

It is an arithmetic number, because the mean of its divisors is an integer number (32675808).

Almost surely, 2189928041 is an apocalyptic number.

It is an amenable number.

189928041 is a deficient number, since it is larger than the sum of its proper divisors (71478423).

189928041 is a wasteful number, since it uses less digits than its factorization.

189928041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2042271.

The product of its (nonzero) digits is 41472, while the sum is 42.

The square root of 189928041 is about 13781.4382776255. The cubic root of 189928041 is about 574.8171224346.

The spelling of 189928041 in words is "one hundred eighty-nine million, nine hundred twenty-eight thousand, forty-one".

Divisors: 1 3 31 93 2042237 6126711 63309347 189928041