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28150406 = 273192811
BaseRepresentation
bin110101101100…
…0101010000110
31221222012002122
41223120222012
524201303111
62443205542
7461163104
oct153305206
957865078
1028150406
11149878a9
1295168b2
135aa815b
143a4ac74
152710cdb
hex1ad8a86

28150406 has 8 divisors (see below), whose sum is σ = 42804264. Its totient is φ = 13882320.

The previous prime is 28150357. The next prime is 28150469. The reversal of 28150406 is 60405182.

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

It is a congruent number.

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, 96260 + ... + 96551.

It is an arithmetic number, because the mean of its divisors is an integer number (5350533).

Almost surely, 228150406 is an apocalyptic number.

28150406 is a deficient number, since it is larger than the sum of its proper divisors (14653858).

28150406 is a wasteful number, since it uses less digits than its factorization.

28150406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192886.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 28150406 is about 5305.6956188609. The cubic root of 28150406 is about 304.2016422490.

Adding to 28150406 its reverse (60405182), we get a palindrome (88555588).

The spelling of 28150406 in words is "twenty-eight million, one hundred fifty thousand, four hundred six".

Divisors: 1 2 73 146 192811 385622 14075203 28150406