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29220419 = 231976449
BaseRepresentation
bin110111101110…
…1111001000011
32000222112212202
41233131321003
524440023134
62522143415
7503240504
oct157357103
960875782
1029220419
1115548808
129951b6b
1360911b7
143c48bab
152872d7e
hex1bdde43

29220419 has 8 divisors (see below), whose sum is σ = 30650400. Its totient is φ = 27803776.

The previous prime is 29220409. The next prime is 29220421. The reversal of 29220419 is 91402292.

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 29220419 - 212 = 29216323 is a prime.

It is a super-2 number, since 2×292204192 = 1707665773071122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29220391 and 29220400.

It is not an unprimeable number, because it can be changed into a prime (29220409) 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, 1307 + ... + 7755.

It is an arithmetic number, because the mean of its divisors is an integer number (3831300).

Almost surely, 229220419 is an apocalyptic number.

29220419 is a deficient number, since it is larger than the sum of its proper divisors (1429981).

29220419 is a wasteful number, since it uses less digits than its factorization.

29220419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6669.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 29220419 is about 5405.5914570008. The cubic root of 29220419 is about 308.0081061284.

The spelling of 29220419 in words is "twenty-nine million, two hundred twenty thousand, four hundred nineteen".

Divisors: 1 23 197 4531 6449 148327 1270453 29220419