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190004641 = 1132416977
BaseRepresentation
bin10110101001100…
…11110110100001
3111020112020100221
423110303312201
5342120122031
630504243041
74465004251
oct1324636641
9436466327
10190004641
1198286332
1253770481
13304978a8
141b33d961
1511a32a11
hexb533da1

190004641 has 8 divisors (see below), whose sum is σ = 192509064. Its totient is φ = 187514880.

The previous prime is 190004621. The next prime is 190004669. The reversal of 190004641 is 146400091.

It can be written as a sum of positive squares in 4 ways, for example, as 254016 + 189750625 = 504^2 + 13775^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 190004641 - 223 = 181616033 is a prime.

It is a super-2 number, since 2×1900046412 = 72203527203077762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190004621) 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, 23745 + ... + 30721.

It is an arithmetic number, because the mean of its divisors is an integer number (24063633).

Almost surely, 2190004641 is an apocalyptic number.

It is an amenable number.

190004641 is a deficient number, since it is larger than the sum of its proper divisors (2504423).

190004641 is a wasteful number, since it uses less digits than its factorization.

190004641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7331.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 190004641 is about 13784.2170978260. The cubic root of 190004641 is about 574.8943886689.

The spelling of 190004641 in words is "one hundred ninety million, four thousand, six hundred forty-one".

Divisors: 1 113 241 6977 27233 788401 1681457 190004641