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28052113 = 192935039
BaseRepresentation
bin110101100000…
…0101010010001
31221210012021011
41223000222101
524140131423
62441130521
7460303405
oct153005221
957705234
1028052113
111491aa71
129489a41
135a724ab
143a23105
1526e1b0d
hex1ac0a91

28052113 has 8 divisors (see below), whose sum is σ = 29635200. Its totient is φ = 26479728.

The previous prime is 28052107. The next prime is 28052119. The reversal of 28052113 is 31125082.

It is an interprime number because it is at equal distance from previous prime (28052107) and next prime (28052119).

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

It is a cyclic number.

It is not a de Polignac number, because 28052113 - 29 = 28051601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28052119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3048 + ... + 8086.

It is an arithmetic number, because the mean of its divisors is an integer number (3704400).

Almost surely, 228052113 is an apocalyptic number.

It is an amenable number.

28052113 is a deficient number, since it is larger than the sum of its proper divisors (1583087).

28052113 is a wasteful number, since it uses less digits than its factorization.

28052113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5351.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 28052113 is about 5296.4245486932. The cubic root of 28052113 is about 303.8471682446.

Adding to 28052113 its reverse (31125082), we get a palindrome (59177195).

The spelling of 28052113 in words is "twenty-eight million, fifty-two thousand, one hundred thirteen".

Divisors: 1 19 293 5039 5567 95741 1476427 28052113