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28745035 = 511522637
BaseRepresentation
bin110110110100…
…1110101001011
32000002101202221
41231221311023
524324320120
62504034511
7466220524
oct155516513
960071687
1028745035
1115253630
129762a37
135c559c7
143b6384b
1527cc0aa
hex1b69d4b

28745035 has 8 divisors (see below), whose sum is σ = 37629936. Its totient is φ = 20905440.

The previous prime is 28745023. The next prime is 28745047. The reversal of 28745035 is 53054782.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28745023) and next prime (28745047).

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

It is not a de Polignac number, because 28745035 - 221 = 26647883 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, 261264 + ... + 261373.

It is an arithmetic number, because the mean of its divisors is an integer number (4703742).

Almost surely, 228745035 is an apocalyptic number.

28745035 is a deficient number, since it is larger than the sum of its proper divisors (8884901).

28745035 is a wasteful number, since it uses less digits than its factorization.

28745035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522653.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 28745035 is about 5361.4396387538. The cubic root of 28745035 is about 306.3286478557.

The spelling of 28745035 in words is "twenty-eight million, seven hundred forty-five thousand, thirty-five".

Divisors: 1 5 11 55 522637 2613185 5749007 28745035