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28233626 = 273193381
BaseRepresentation
bin110101110110…
…0111110011010
31222010102020212
41223230332122
524211434001
62445051122
7461660531
oct153547632
958112225
1028233626
1114a34383
129556aa2
135b06cb5
143a6d318
15272a7bb
hex1aecf9a

28233626 has 8 divisors (see below), whose sum is σ = 42930804. Its totient is φ = 13923360.

The previous prime is 28233613. The next prime is 28233629. The reversal of 28233626 is 62633282.

It can be written as a sum of positive squares in 2 ways, for example, as 28143025 + 90601 = 5305^2 + 301^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 28233592 and 28233601.

It is not an unprimeable number, because it can be changed into a prime (28233629) 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, 96545 + ... + 96836.

Almost surely, 228233626 is an apocalyptic number.

28233626 is a deficient number, since it is larger than the sum of its proper divisors (14697178).

28233626 is a wasteful number, since it uses less digits than its factorization.

28233626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193456.

The product of its digits is 20736, while the sum is 32.

The square root of 28233626 is about 5313.5323467539. The cubic root of 28233626 is about 304.5011140100.

The spelling of 28233626 in words is "twenty-eight million, two hundred thirty-three thousand, six hundred twenty-six".

Divisors: 1 2 73 146 193381 386762 14116813 28233626