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388955 = 5711113
BaseRepresentation
bin1011110111101011011
3201202112202
41132331123
544421310
612200415
73206660
oct1367533
9652482
10388955
11246256
1216910b
13108068
14a1a67
157a3a5
hex5ef5b

388955 has 8 divisors (see below), whose sum is σ = 533472. Its totient is φ = 266688.

The previous prime is 388937. The next prime is 388961. The reversal of 388955 is 559883.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 388955 - 26 = 388891 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5522 + ... + 5591.

It is an arithmetic number, because the mean of its divisors is an integer number (66684).

2388955 is an apocalyptic number.

388955 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

388955 is a deficient number, since it is larger than the sum of its proper divisors (144517).

388955 is a wasteful number, since it uses less digits than its factorization.

388955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11125.

The product of its digits is 43200, while the sum is 38.

The square root of 388955 is about 623.6625690227. The cubic root of 388955 is about 72.9961216430.

The spelling of 388955 in words is "three hundred eighty-eight thousand, nine hundred fifty-five".

Divisors: 1 5 7 35 11113 55565 77791 388955