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28152350 = 252563047
BaseRepresentation
bin110101101100…
…1001000011110
31221222021202122
41223121020132
524201333400
62443222542
7461201552
oct153311036
957867678
1028152350
1114989306
129517a52
135aa8cc5
143a4b862
152711685
hex1ad921e

28152350 has 12 divisors (see below), whose sum is σ = 52363464. Its totient is φ = 11260920.

The previous prime is 28152343. The next prime is 28152353. The reversal of 28152350 is 5325182.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28152353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 281474 + ... + 281573.

It is an arithmetic number, because the mean of its divisors is an integer number (4363622).

Almost surely, 228152350 is an apocalyptic number.

28152350 is a deficient number, since it is larger than the sum of its proper divisors (24211114).

28152350 is a wasteful number, since it uses less digits than its factorization.

28152350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563059 (or 563054 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 28152350 is about 5305.8788150503. The cubic root of 28152350 is about 304.2086445681.

The spelling of 28152350 in words is "twenty-eight million, one hundred fifty-two thousand, three hundred fifty".

Divisors: 1 2 5 10 25 50 563047 1126094 2815235 5630470 14076175 28152350