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28282412 = 2219372137
BaseRepresentation
bin110101111100…
…0111000101100
31222012220011202
41223320320230
524220014122
62450105032
7462253004
oct153707054
958186152
1028282412
1114a67aa4
12957b178
135b23272
143a83004
152739e92
hex1af8e2c

28282412 has 12 divisors (see below), whose sum is σ = 52099320. Its totient is φ = 13396896.

The previous prime is 28282409. The next prime is 28282483. The reversal of 28282412 is 21428282.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185993 + ... + 186144.

It is an arithmetic number, because the mean of its divisors is an integer number (4341610).

Almost surely, 228282412 is an apocalyptic number.

It is an amenable number.

28282412 is a deficient number, since it is larger than the sum of its proper divisors (23816908).

28282412 is a wasteful number, since it uses less digits than its factorization.

28282412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372160 (or 372158 counting only the distinct ones).

The product of its digits is 4096, while the sum is 29.

The square root of 28282412 is about 5318.1210967784. The cubic root of 28282412 is about 304.6763995973.

The spelling of 28282412 in words is "twenty-eight million, two hundred eighty-two thousand, four hundred twelve".

Divisors: 1 2 4 19 38 76 372137 744274 1488548 7070603 14141206 28282412