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28952296 = 233619037
BaseRepresentation
bin110111001110…
…0011011101000
32000110221002021
41232130123220
524402433141
62512314224
7501043012
oct156343350
960427067
1028952296
111538531a
129842974
135cc9149
143bb91b2
15281d6d1
hex1b9c6e8

28952296 has 8 divisors (see below), whose sum is σ = 54285570. Its totient is φ = 14476144.

The previous prime is 28952293. The next prime is 28952327. The reversal of 28952296 is 69225982.

It can be written as a sum of positive squares in only one way, i.e., 27772900 + 1179396 = 5270^2 + 1086^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (28952293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1809511 + ... + 1809526.

Almost surely, 228952296 is an apocalyptic number.

It is an amenable number.

28952296 is a deficient number, since it is larger than the sum of its proper divisors (25333274).

28952296 is a wasteful number, since it uses less digits than its factorization.

28952296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3619043 (or 3619039 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The square root of 28952296 is about 5380.7337789562. The cubic root of 28952296 is about 307.0631282716.

The spelling of 28952296 in words is "twenty-eight million, nine hundred fifty-two thousand, two hundred ninety-six".

Divisors: 1 2 4 8 3619037 7238074 14476148 28952296