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48890665 = 5291731949
BaseRepresentation
bin1011101010000…
…0001100101001
310101222220101101
42322200030221
5100004000130
64503521401
71132364245
oct272401451
9111886341
1048890665
112566330a
1214459261
13a18a4b5
1466c9425
15445b1ca
hex2ea0329

48890665 has 16 divisors (see below), whose sum is σ = 61074000. Its totient is φ = 37526272.

The previous prime is 48890603. The next prime is 48890683. The reversal of 48890665 is 56609884.

It can be written as a sum of positive squares in 8 ways, for example, as 5607424 + 43283241 = 2368^2 + 6579^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-48890665 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24111 + ... + 26059.

It is an arithmetic number, because the mean of its divisors is an integer number (3817125).

Almost surely, 248890665 is an apocalyptic number.

It is an amenable number.

48890665 is a deficient number, since it is larger than the sum of its proper divisors (12183335).

48890665 is a wasteful number, since it uses less digits than its factorization.

48890665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156.

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 48890665 is about 6992.1859958099. The cubic root of 48890665 is about 365.6581981203.

The spelling of 48890665 in words is "forty-eight million, eight hundred ninety thousand, six hundred sixty-five".

Divisors: 1 5 29 145 173 865 1949 5017 9745 25085 56521 282605 337177 1685885 9778133 48890665