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28695922 = 283172867
BaseRepresentation
bin110110101110…
…1110101110010
31222222220101221
41231131311302
524321232142
62503015254
7465624403
oct155356562
958886357
1028695922
111521a742
12973a52a
135c39548
143b4d9aa
1527bc767
hex1b5dd72

28695922 has 8 divisors (see below), whose sum is σ = 43562736. Its totient is φ = 14175012.

The previous prime is 28695913. The next prime is 28695923. The reversal of 28695922 is 22959682.

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

It is not an unprimeable number, because it can be changed into a prime (28695923) 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, 86268 + ... + 86599.

It is an arithmetic number, because the mean of its divisors is an integer number (5445342).

Almost surely, 228695922 is an apocalyptic number.

28695922 is a deficient number, since it is larger than the sum of its proper divisors (14866814).

28695922 is a wasteful number, since it uses less digits than its factorization.

28695922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172952.

The product of its digits is 155520, while the sum is 43.

The square root of 28695922 is about 5356.8574743034. The cubic root of 28695922 is about 306.1540867491.

The spelling of 28695922 in words is "twenty-eight million, six hundred ninety-five thousand, nine hundred twenty-two".

Divisors: 1 2 83 166 172867 345734 14347961 28695922