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190394841 = 3731343331
BaseRepresentation
bin10110101100100…
…11000111011001
3111021021001121210
423112103013121
5342220113331
630520453333
74501221000
oct1326230731
9437231553
10190394841
119852250a
125391a249
13305a3390
141b401c37
1511aad446
hexb5931d9

190394841 has 64 divisors (see below), whose sum is σ = 327219200. Its totient is φ = 97796160.

The previous prime is 190394821. The next prime is 190394873. The reversal of 190394841 is 148493091.

It is not a de Polignac number, because 190394841 - 29 = 190394329 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 190394841.

It is not an unprimeable number, because it can be changed into a prime (190394821) 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, 575046 + ... + 575376.

It is an arithmetic number, because the mean of its divisors is an integer number (5112800).

Almost surely, 2190394841 is an apocalyptic number.

It is an amenable number.

190394841 is a deficient number, since it is larger than the sum of its proper divisors (136824359).

190394841 is a wasteful number, since it uses less digits than its factorization.

190394841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411 (or 397 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 190394841 is about 13798.3637073386. The cubic root of 190394841 is about 575.2876604763.

The spelling of 190394841 in words is "one hundred ninety million, three hundred ninety-four thousand, eight hundred forty-one".

Divisors: 1 3 7 13 21 39 43 49 91 129 147 273 301 331 343 559 637 903 993 1029 1677 1911 2107 2317 3913 4303 4459 6321 6951 11739 12909 13377 14233 14749 16219 27391 30121 42699 44247 48657 82173 90363 99631 113533 185029 191737 210847 298893 340599 555087 575211 632541 697417 1295203 1475929 2092251 3885609 4427787 4881919 9066421 14645757 27199263 63464947 190394841