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28054622 = 219970489
BaseRepresentation
bin110101100000…
…1010001011110
31221210022201002
41223001101132
524140221442
62441150302
7460313621
oct153012136
957708632
1028054622
1114921942
12948b392
135a7368b
143a23db8
1526e2732
hex1ac145e

28054622 has 8 divisors (see below), whose sum is σ = 42294000. Its totient is φ = 13956624.

The previous prime is 28054591. The next prime is 28054627. The reversal of 28054622 is 22645082.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28054627) 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, 34847 + ... + 35642.

It is an arithmetic number, because the mean of its divisors is an integer number (5286750).

Almost surely, 228054622 is an apocalyptic number.

28054622 is a deficient number, since it is larger than the sum of its proper divisors (14239378).

28054622 is a wasteful number, since it uses less digits than its factorization.

28054622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70690.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 28054622 is about 5296.6614012980. The cubic root of 28054622 is about 303.8562267401.

The spelling of 28054622 in words is "twenty-eight million, fifty-four thousand, six hundred twenty-two".

Divisors: 1 2 199 398 70489 140978 14027311 28054622