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388227 = 37219139
BaseRepresentation
bin1011110110010000011
3201201112210
41132302003
544410402
612153203
73204600
oct1366203
9651483
10388227
11245754
12168803
13107928
14a16a7
157a06c
hex5ec83

388227 has 24 divisors (see below), whose sum is σ = 638400. Its totient is φ = 208656.

The previous prime is 388211. The next prime is 388231. The reversal of 388227 is 722883.

It is not a de Polignac number, because 388227 - 24 = 388211 is a prime.

Its product of digits (5376) is a multiple of the sum of its prime divisors (168).

388227 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 388194 and 388203.

It is not an unprimeable number, because it can be changed into a prime (388237) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2724 + ... + 2862.

It is an arithmetic number, because the mean of its divisors is an integer number (26600).

2388227 is an apocalyptic number.

388227 is a deficient number, since it is larger than the sum of its proper divisors (250173).

388227 is a wasteful number, since it uses less digits than its factorization.

388227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175 (or 168 counting only the distinct ones).

The product of its digits is 5376, while the sum is 30.

The square root of 388227 is about 623.0786467213. The cubic root of 388227 is about 72.9505513623.

The spelling of 388227 in words is "three hundred eighty-eight thousand, two hundred twenty-seven".

Divisors: 1 3 7 19 21 49 57 133 139 147 399 417 931 973 2641 2793 2919 6811 7923 18487 20433 55461 129409 388227