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28119506 = 2194317209
BaseRepresentation
bin110101101000…
…1000111010010
31221220121201012
41223101013102
524144311011
62442410522
7461004032
oct153210722
957817635
1028119506
1114966668
129500a42
135a9707c
143a3d8c2
152706a8b
hex1ad11d2

28119506 has 16 divisors (see below), whose sum is σ = 45434400. Its totient is φ = 13009248.

The previous prime is 28119439. The next prime is 28119517. The reversal of 28119506 is 60591182.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6971 + ... + 10238.

It is an arithmetic number, because the mean of its divisors is an integer number (2839650).

Almost surely, 228119506 is an apocalyptic number.

28119506 is a deficient number, since it is larger than the sum of its proper divisors (17314894).

28119506 is a wasteful number, since it uses less digits than its factorization.

28119506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17273.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 28119506 is about 5302.7828543134. The cubic root of 28119506 is about 304.0902966416.

The spelling of 28119506 in words is "twenty-eight million, one hundred nineteen thousand, five hundred six".

Divisors: 1 2 19 38 43 86 817 1634 17209 34418 326971 653942 739987 1479974 14059753 28119506