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194090662031 = 7218043219533
BaseRepresentation
bin1011010011000010110…
…1000111100010001111
3200112222111211012202012
42310300231013202033
511134444202141111
6225055232251435
720010514256300
oct2646055074217
9615874735665
10194090662031
117534a134112
12317486a0b7b
13153c1c777a6
1495733527a7
1550ae79948b
hex2d30b4788f

194090662031 has 12 divisors (see below), whose sum is σ = 225792475272. Its totient is φ = 166353446448.

The previous prime is 194090662027. The next prime is 194090662043. The reversal of 194090662031 is 130266090491.

194090662031 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 194090662031 - 22 = 194090662027 is a prime.

It is a super-2 number, since 2×1940906620312 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 194090662031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194090662091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 774341 + ... + 993873.

It is an arithmetic number, because the mean of its divisors is an integer number (18816039606).

Almost surely, 2194090662031 is an apocalyptic number.

194090662031 is a deficient number, since it is larger than the sum of its proper divisors (31701813241).

194090662031 is a wasteful number, since it uses less digits than its factorization.

194090662031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237590 (or 237583 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 41.

The spelling of 194090662031 in words is "one hundred ninety-four billion, ninety million, six hundred sixty-two thousand, thirty-one".

Divisors: 1 7 49 18043 126301 219533 884107 1536731 10757117 3961033919 27727237433 194090662031