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28994635 = 529359557
BaseRepresentation
bin110111010011…
…0110001001011
32000120002011101
41232212301023
524410312020
62513242231
7501310315
oct156466113
960502141
1028994635
111540410a
129863377
1360124b7
143bca7b5
15282b00a
hex1ba6c4b

28994635 has 16 divisors (see below), whose sum is σ = 36158400. Its totient is φ = 22293376.

The previous prime is 28994621. The next prime is 28994653. The reversal of 28994635 is 53649982.

It is a cyclic number.

It is not a de Polignac number, because 28994635 - 27 = 28994507 is a prime.

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, 51777 + ... + 52333.

It is an arithmetic number, because the mean of its divisors is an integer number (2259900).

Almost surely, 228994635 is an apocalyptic number.

28994635 is a deficient number, since it is larger than the sum of its proper divisors (7163765).

28994635 is a wasteful number, since it uses less digits than its factorization.

28994635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950.

The product of its digits is 466560, while the sum is 46.

The square root of 28994635 is about 5384.6666563493. Note that the first 4 decimals coincide. The cubic root of 28994635 is about 307.2127354464.

The spelling of 28994635 in words is "twenty-eight million, nine hundred ninety-four thousand, six hundred thirty-five".

Divisors: 1 5 29 145 359 557 1795 2785 10411 16153 52055 80765 199963 999815 5798927 28994635