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387276065 = 51117414199
BaseRepresentation
bin10111000101010…
…101110100100001
3222222201122212222
4113011111310201
51243120313230
6102232400425
712411535511
oct2705256441
9888648788
10387276065
11189675270
12a9846115
1362307c47
1439611841
1523eed6e5
hex17155d21

387276065 has 16 divisors (see below), whose sum is σ = 536803200. Its totient is φ = 265086720.

The previous prime is 387276061. The next prime is 387276079. The reversal of 387276065 is 560672783.

It is not a de Polignac number, because 387276065 - 22 = 387276061 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (387276061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206165 + ... + 208034.

It is an arithmetic number, because the mean of its divisors is an integer number (33550200).

Almost surely, 2387276065 is an apocalyptic number.

It is an amenable number.

387276065 is a deficient number, since it is larger than the sum of its proper divisors (149527135).

387276065 is a wasteful number, since it uses less digits than its factorization.

387276065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414232.

The product of its (nonzero) digits is 423360, while the sum is 44.

The square root of 387276065 is about 19679.3309083414. The cubic root of 387276065 is about 728.9094023294.

The spelling of 387276065 in words is "three hundred eighty-seven million, two hundred seventy-six thousand, sixty-five".

Divisors: 1 5 11 17 55 85 187 935 414199 2070995 4556189 7041383 22780945 35206915 77455213 387276065