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368486505 = 32540920021
BaseRepresentation
bin10101111101101…
…010100001101001
3221200101001110100
4111331222201221
51223313032010
6100321540013
712063040452
oct2575524151
9850331410
10368486505
1117a001402
12a34a4609
135b45976a
1436d20129
152253b2c0
hex15f6a869

368486505 has 24 divisors (see below), whose sum is σ = 640303560. Its totient is φ = 196035840.

The previous prime is 368486501. The next prime is 368486507. The reversal of 368486505 is 505684863.

368486505 is a `hidden beast` number, since 3 + 68 + 4 + 86 + 505 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 27751824 + 340734681 = 5268^2 + 18459^2 .

It is not a de Polignac number, because 368486505 - 22 = 368486501 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (368486501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8395 + ... + 28415.

It is an arithmetic number, because the mean of its divisors is an integer number (26679315).

Almost surely, 2368486505 is an apocalyptic number.

It is an amenable number.

368486505 is a deficient number, since it is larger than the sum of its proper divisors (271817055).

368486505 is a wasteful number, since it uses less digits than its factorization.

368486505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20441 (or 20438 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The square root of 368486505 is about 19196.0023181911. The cubic root of 368486505 is about 716.9252269381.

The spelling of 368486505 in words is "three hundred sixty-eight million, four hundred eighty-six thousand, five hundred five".

Divisors: 1 3 5 9 15 45 409 1227 2045 3681 6135 18405 20021 60063 100105 180189 300315 900945 8188589 24565767 40942945 73697301 122828835 368486505