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2828155 = 51151421
BaseRepresentation
bin1010110010011101111011
312022200111111
422302131323
51211000110
6140341151
733016231
oct12623573
95280444
102828155
111661920
12b447b7
13780385
14538951
153ace8a
hex2b277b

2828155 has 8 divisors (see below), whose sum is σ = 3702384. Its totient is φ = 2056800.

The previous prime is 2828141. The next prime is 2828173. The reversal of 2828155 is 5518282.

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

It is not a de Polignac number, because 2828155 - 25 = 2828123 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25656 + ... + 25765.

It is an arithmetic number, because the mean of its divisors is an integer number (462798).

22828155 is an apocalyptic number.

2828155 is a deficient number, since it is larger than the sum of its proper divisors (874229).

2828155 is a wasteful number, since it uses less digits than its factorization.

2828155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51437.

The product of its digits is 6400, while the sum is 31.

The square root of 2828155 is about 1681.7119253903. The cubic root of 2828155 is about 141.4168206794.

The spelling of 2828155 in words is "two million, eight hundred twenty-eight thousand, one hundred fifty-five".

Divisors: 1 5 11 55 51421 257105 565631 2828155