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119291221 = 731753759
BaseRepresentation
bin1110001110000…
…11110101010101
322022110121210101
413013003311111
5221014304341
615500454101
72645646550
oct707036525
9268417711
10119291221
1161378295
1233b4a331
131b93942a
1411bb3697
15a715831
hex71c3d55

119291221 has 8 divisors (see below), whose sum is σ = 136765440. Its totient is φ = 101925168.

The previous prime is 119291213. The next prime is 119291233. The reversal of 119291221 is 122192911.

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 119291221 - 23 = 119291213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 119291221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (119291321) 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, 24661 + ... + 29098.

It is an arithmetic number, because the mean of its divisors is an integer number (17095680).

Almost surely, 2119291221 is an apocalyptic number.

It is an amenable number.

119291221 is a deficient number, since it is larger than the sum of its proper divisors (17474219).

119291221 is an equidigital number, since it uses as much as digits as its factorization.

119291221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54083.

The product of its digits is 648, while the sum is 28.

The square root of 119291221 is about 10922.0520507824. The cubic root of 119291221 is about 492.2693858773.

The spelling of 119291221 in words is "one hundred nineteen million, two hundred ninety-one thousand, two hundred twenty-one".

Divisors: 1 7 317 2219 53759 376313 17041603 119291221