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28961014 = 264722381
BaseRepresentation
bin110111001111…
…0100011110110
32000111101001011
41232132203312
524403223024
62512422434
7501110305
oct156364366
960441034
1028961014
1115390925
129847a1a
1360000c4
143bbc43c
152821094
hex1b9e8f6

28961014 has 8 divisors (see below), whose sum is σ = 43510608. Its totient is φ = 14457480.

The previous prime is 28960993. The next prime is 28961017. The reversal of 28961014 is 41016982.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28961017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9897 + ... + 12484.

It is an arithmetic number, because the mean of its divisors is an integer number (5438826).

Almost surely, 228961014 is an apocalyptic number.

28961014 is a deficient number, since it is larger than the sum of its proper divisors (14549594).

28961014 is a wasteful number, since it uses less digits than its factorization.

28961014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23030.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 28961014 is about 5381.5438305379. The cubic root of 28961014 is about 307.0939457204.

Adding to 28961014 its reverse (41016982), we get a palindrome (69977996).

The spelling of 28961014 in words is "twenty-eight million, nine hundred sixty-one thousand, fourteen".

Divisors: 1 2 647 1294 22381 44762 14480507 28961014