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380490 = 235111153
BaseRepresentation
bin1011100111001001010
3201022221020
41130321022
544133430
612053310
73143205
oct1347112
9638836
10380490
1123a960
12164236
13104256
149c93c
1577b10
hex5ce4a

380490 has 32 divisors (see below), whose sum is σ = 997056. Its totient is φ = 92160.

The previous prime is 380483. The next prime is 380503. The reversal of 380490 is 94083.

380490 is nontrivially palindromic in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 380490.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247 + ... + 906.

It is an arithmetic number, because the mean of its divisors is an integer number (31158).

2380490 is an apocalyptic number.

380490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

380490 is an abundant number, since it is smaller than the sum of its proper divisors (616566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

380490 is a wasteful number, since it uses less digits than its factorization.

380490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 380490 is about 616.8387147383. The cubic root of 380490 is about 72.4626839277.

The spelling of 380490 in words is "three hundred eighty thousand, four hundred ninety".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 1153 2306 3459 5765 6918 11530 12683 17295 25366 34590 38049 63415 76098 126830 190245 380490