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229580690 = 25149154081
BaseRepresentation
bin11011010111100…
…01111110010010
3120222222220111112
431223301332102
5432233040230
634440413322
75455255313
oct1553617622
9528886445
10229580690
11108657409
1264a77242
1338743481
14226c260a
151524dd95
hexdaf1f92

229580690 has 16 divisors (see below), whose sum is σ = 416021400. Its totient is φ = 91215360.

The previous prime is 229580677. The next prime is 229580711. The reversal of 229580690 is 96085922.

It can be written as a sum of positive squares in 4 ways, for example, as 158734801 + 70845889 = 12599^2 + 8417^2 .

It is a super-2 number, since 2×2295806902 = 105414586441752200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75551 + ... + 78530.

Almost surely, 2229580690 is an apocalyptic number.

229580690 is a deficient number, since it is larger than the sum of its proper divisors (186440710).

229580690 is a wasteful number, since it uses less digits than its factorization.

229580690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154237.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 229580690 is about 15151.9203403397. The cubic root of 229580690 is about 612.3200104203.

The spelling of 229580690 in words is "two hundred twenty-nine million, five hundred eighty thousand, six hundred ninety".

Divisors: 1 2 5 10 149 298 745 1490 154081 308162 770405 1540810 22958069 45916138 114790345 229580690