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28153106 = 2127271409
BaseRepresentation
bin110101101100…
…1010100010010
31221222022210122
41223121110102
524201344411
62443230242
7461204012
oct153312422
957868718
1028153106
1114989933
129518382
135aa9457
143a4bc42
1527119db
hex1ad9512

28153106 has 16 divisors (see below), whose sum is σ = 42823680. Its totient is φ = 13880160.

The previous prime is 28153067. The next prime is 28153121. The reversal of 28153106 is 60135182.

It is a Curzon number.

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, 68630 + ... + 69038.

It is an arithmetic number, because the mean of its divisors is an integer number (2676480).

Almost surely, 228153106 is an apocalyptic number.

28153106 is a deficient number, since it is larger than the sum of its proper divisors (14670574).

28153106 is a wasteful number, since it uses less digits than its factorization.

28153106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 28153106 is about 5305.9500563047. The cubic root of 28153106 is about 304.2113676052.

Adding to 28153106 its reverse (60135182), we get a palindrome (88288288).

The spelling of 28153106 in words is "twenty-eight million, one hundred fifty-three thousand, one hundred six".

Divisors: 1 2 127 254 271 409 542 818 34417 51943 68834 103886 110839 221678 14076553 28153106