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38845065 = 3572912757
BaseRepresentation
bin1001010000101…
…1101010001001
32201002112102010
42110023222021
534421020230
63504330133
7651114630
oct224135211
981075363
1038845065
111aa21966
1211013949
138080c5c
145232517
1536249b0
hex250ba89

38845065 has 32 divisors (see below), whose sum is σ = 73486080. Its totient is φ = 17144064.

The previous prime is 38845057. The next prime is 38845073. The reversal of 38845065 is 56054883.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (38845057) and next prime (38845073).

It is not a de Polignac number, because 38845065 - 23 = 38845057 is a prime.

It is a Curzon number.

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 31 ways as a sum of consecutive naturals, for example, 3334 + ... + 9423.

It is an arithmetic number, because the mean of its divisors is an integer number (2296440).

Almost surely, 238845065 is an apocalyptic number.

38845065 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

38845065 is a deficient number, since it is larger than the sum of its proper divisors (34641015).

38845065 is a wasteful number, since it uses less digits than its factorization.

38845065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12801.

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 38845065 is about 6232.5809260691. The cubic root of 38845065 is about 338.6714736532.

The spelling of 38845065 in words is "thirty-eight million, eight hundred forty-five thousand, sixty-five".

Divisors: 1 3 5 7 15 21 29 35 87 105 145 203 435 609 1015 3045 12757 38271 63785 89299 191355 267897 369953 446495 1109859 1339485 1849765 2589671 5549295 7769013 12948355 38845065