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190699229 = 723891821
BaseRepresentation
bin10110101110111…
…01011011011101
3111021211112011102
423113131123131
5342304333404
630531202445
74503626300
oct1327353335
9437745142
10190699229
1198710176
1253a46425
133067baa6
141b480b37
1511b1d71e
hexb5dd6dd

190699229 has 6 divisors (see below), whose sum is σ = 221833854. Its totient is φ = 163456440.

The previous prime is 190699213. The next prime is 190699231. The reversal of 190699229 is 922996091.

It can be written as a sum of positive squares in only one way, i.e., 118483225 + 72216004 = 10885^2 + 8498^2 .

It is not a de Polignac number, because 190699229 - 24 = 190699213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190699129) 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 5 ways as a sum of consecutive naturals, for example, 1945862 + ... + 1945959.

It is an arithmetic number, because the mean of its divisors is an integer number (36972309).

Almost surely, 2190699229 is an apocalyptic number.

It is an amenable number.

190699229 is a deficient number, since it is larger than the sum of its proper divisors (31134625).

190699229 is an equidigital number, since it uses as much as digits as its factorization.

190699229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3891835 (or 3891828 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 47.

The square root of 190699229 is about 13809.3891610020. The cubic root of 190699229 is about 575.5940718347.

The spelling of 190699229 in words is "one hundred ninety million, six hundred ninety-nine thousand, two hundred twenty-nine".

Divisors: 1 7 49 3891821 27242747 190699229