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28295634 = 2343109673
BaseRepresentation
bin110101111110…
…0000111010010
31222020120022110
41223330013102
524220430014
62450250150
7462336363
oct153740722
958216273
1028295634
1114a76a24
129586956
135b292a3
143a87b6a
15273dd59
hex1afc1d2

28295634 has 16 divisors (see below), whose sum is σ = 57907872. Its totient is φ = 9212448.

The previous prime is 28295623. The next prime is 28295647. The reversal of 28295634 is 43659282.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 28295592 and 28295601.

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, 54579 + ... + 55094.

It is an arithmetic number, because the mean of its divisors is an integer number (3619242).

Almost surely, 228295634 is an apocalyptic number.

28295634 is an abundant number, since it is smaller than the sum of its proper divisors (29612238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28295634 is a wasteful number, since it uses less digits than its factorization.

28295634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109721.

The product of its digits is 103680, while the sum is 39.

The square root of 28295634 is about 5319.3640597350. The cubic root of 28295634 is about 304.7238708403.

The spelling of 28295634 in words is "twenty-eight million, two hundred ninety-five thousand, six hundred thirty-four".

Divisors: 1 2 3 6 43 86 129 258 109673 219346 329019 658038 4715939 9431878 14147817 28295634