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28379635 = 519298733
BaseRepresentation
bin110110001000…
…0100111110011
31222101211112121
41230100213303
524231122020
62452135111
7463136314
oct154204763
958354477
1028379635
1115024049
129607497
135b585ab
143aaa60b
152758baa
hex1b109f3

28379635 has 8 divisors (see below), whose sum is σ = 35848080. Its totient is φ = 21508704.

The previous prime is 28379573. The next prime is 28379641. The reversal of 28379635 is 53697382.

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 28379635 - 221 = 26282483 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28379591 and 28379600.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 149272 + ... + 149461.

It is an arithmetic number, because the mean of its divisors is an integer number (4481010).

Almost surely, 228379635 is an apocalyptic number.

28379635 is a deficient number, since it is larger than the sum of its proper divisors (7468445).

28379635 is a wasteful number, since it uses less digits than its factorization.

28379635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298757.

The product of its digits is 272160, while the sum is 43.

The square root of 28379635 is about 5327.2539830573. The cubic root of 28379635 is about 305.0251166273.

The spelling of 28379635 in words is "twenty-eight million, three hundred seventy-nine thousand, six hundred thirty-five".

Divisors: 1 5 19 95 298733 1493665 5675927 28379635