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28933346 = 2131112821
BaseRepresentation
bin110111001011…
…1110011100010
32000102222002102
41232113303202
524401331341
62512050402
7500633531
oct156276342
960388072
1028933346
1115372062
129833a02
135cc0630
143bb2318
152817c9b
hex1b97ce2

28933346 has 8 divisors (see below), whose sum is σ = 46738524. Its totient is φ = 13353840.

The previous prime is 28933343. The next prime is 28933349. The reversal of 28933346 is 64333982.

It is an interprime number because it is at equal distance from previous prime (28933343) and next prime (28933349).

It can be written as a sum of positive squares in 2 ways, for example, as 28143025 + 790321 = 5305^2 + 889^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28933343) 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, 556385 + ... + 556436.

Almost surely, 228933346 is an apocalyptic number.

28933346 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28933346 is a deficient number, since it is larger than the sum of its proper divisors (17805178).

28933346 is a wasteful number, since it uses less digits than its factorization.

28933346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112836.

The product of its digits is 93312, while the sum is 38.

The square root of 28933346 is about 5378.9725784763. The cubic root of 28933346 is about 306.9961201574.

The spelling of 28933346 in words is "twenty-eight million, nine hundred thirty-three thousand, three hundred forty-six".

Divisors: 1 2 13 26 1112821 2225642 14466673 28933346