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190448349 = 3731323619
BaseRepresentation
bin10110101101000…
…00001011011101
3111021100210000120
423112200023131
5342223321344
630521545153
74501533000
oct1326401335
9437323016
10190448349
1198559733
12539451b9
13305c1840
141b417537
1511abe219
hexb5a02dd

190448349 has 64 divisors (see below), whose sum is σ = 333312000. Its totient is φ = 95933376.

The previous prime is 190448317. The next prime is 190448351. The reversal of 190448349 is 943844091.

190448349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 190448349 - 25 = 190448317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 190448349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190448309) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 307362 + ... + 307980.

It is an arithmetic number, because the mean of its divisors is an integer number (5208000).

Almost surely, 2190448349 is an apocalyptic number.

It is an amenable number.

190448349 is a deficient number, since it is larger than the sum of its proper divisors (142863651).

190448349 is a wasteful number, since it uses less digits than its factorization.

190448349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679 (or 665 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 190448349 is about 13800.3024966846. The cubic root of 190448349 is about 575.3415478064.

The spelling of 190448349 in words is "one hundred ninety million, four hundred forty-eight thousand, three hundred forty-nine".

Divisors: 1 3 7 13 21 23 39 49 69 91 147 161 273 299 343 483 619 637 897 1029 1127 1857 1911 2093 3381 4333 4459 6279 7889 8047 12999 13377 14237 14651 23667 24141 30331 42711 43953 56329 90993 99659 102557 168987 185081 212317 298977 307671 394303 555243 636951 697613 1182909 1295567 2092839 2760121 3886701 4883291 8280363 9068969 14649873 27206907 63482783 190448349