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30056055 = 352387119
BaseRepresentation
bin111001010100…
…1111001110111
32002120000011020
41302221321313
530143243210
62552112223
7513320661
oct162517167
962500136
1030056055
1115a69617
12a095673
1362c4663
143dc5531
15298a770
hex1ca9e77

30056055 has 16 divisors (see below), whose sum is σ = 50181120. Its totient is φ = 15332768.

The previous prime is 30055997. The next prime is 30056087. The reversal of 30056055 is 55065003.

It is a cyclic number.

It is not a de Polignac number, because 30056055 - 28 = 30055799 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43215 + ... + 43904.

It is an arithmetic number, because the mean of its divisors is an integer number (3136320).

Almost surely, 230056055 is an apocalyptic number.

30056055 is a deficient number, since it is larger than the sum of its proper divisors (20125065).

30056055 is a wasteful number, since it uses less digits than its factorization.

30056055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87150.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 30056055 is about 5482.3402849513. The cubic root of 30056055 is about 310.9166589821.

The spelling of 30056055 in words is "thirty million, fifty-six thousand, fifty-five".

Divisors: 1 3 5 15 23 69 115 345 87119 261357 435595 1306785 2003737 6011211 10018685 30056055