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30226319 = 205314723
BaseRepresentation
bin111001101001…
…1011110001111
32002212122201022
41303103132033
530214220234
62555504355
7514630244
oct163233617
962778638
1030226319
1116075532
12a1580bb
136353cc6
14402b5cb
1529c0e2e
hex1cd378f

30226319 has 4 divisors (see below), whose sum is σ = 30243096. Its totient is φ = 30209544.

The previous prime is 30226303. The next prime is 30226351. The reversal of 30226319 is 91362203.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30226319 - 24 = 30226303 is a prime.

It is a super-2 number, since 2×302263192 = 1827260720579522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30226369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5309 + ... + 9414.

It is an arithmetic number, because the mean of its divisors is an integer number (7560774).

Almost surely, 230226319 is an apocalyptic number.

30226319 is a deficient number, since it is larger than the sum of its proper divisors (16777).

30226319 is a wasteful number, since it uses less digits than its factorization.

30226319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16776.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 30226319 is about 5497.8467603235. The cubic root of 30226319 is about 311.5026558813.

The spelling of 30226319 in words is "thirty million, two hundred twenty-six thousand, three hundred nineteen".

Divisors: 1 2053 14723 30226319