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387764055 = 32571230997
BaseRepresentation
bin10111000111001…
…100111101010111
31000000122110021200
4113013030331113
51243231422210
6102251043543
712415640310
oct2707147527
91000573250
10387764055
11189978968
12a9a405b3
13624490b3
14396db607
15240980c0
hex171ccf57

387764055 has 24 divisors (see below), whose sum is σ = 768142752. Its totient is φ = 177263424.

The previous prime is 387764029. The next prime is 387764063. The reversal of 387764055 is 550467783.

387764055 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 387764055 - 211 = 387762007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 387764055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 615184 + ... + 615813.

It is an arithmetic number, because the mean of its divisors is an integer number (32005948).

Almost surely, 2387764055 is an apocalyptic number.

387764055 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

387764055 is a deficient number, since it is larger than the sum of its proper divisors (380378697).

387764055 is a wasteful number, since it uses less digits than its factorization.

387764055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231015 (or 1231012 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The square root of 387764055 is about 19691.7255465335. The cubic root of 387764055 is about 729.2154296786.

The spelling of 387764055 in words is "three hundred eighty-seven million, seven hundred sixty-four thousand, fifty-five".

Divisors: 1 3 5 7 9 15 21 35 45 63 105 315 1230997 3692991 6154985 8616979 11078973 18464955 25850937 43084895 55394865 77552811 129254685 387764055