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199470 = 23561109
BaseRepresentation
bin110000101100101110
3101010121210
4300230232
522340340
64135250
71460355
oct605456
9333553
10199470
11126957
1297526
136ca3b
145299c
153e180
hex30b2e

199470 has 32 divisors (see below), whose sum is σ = 491040. Its totient is φ = 51840.

The previous prime is 199457. The next prime is 199483. The reversal of 199470 is 74991.

199470 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

199470 is an esthetic number in base 3, because in such base its adjacent digits differ by 1.

It is an interprime number because it is at equal distance from previous prime (199457) and next prime (199483).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 199470.

It is an unprimeable number.

199470 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1776 + ... + 1884.

It is an arithmetic number, because the mean of its divisors is an integer number (15345).

2199470 is an apocalyptic number.

199470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 199470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245520).

199470 is an abundant number, since it is smaller than the sum of its proper divisors (291570).

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

199470 is a wasteful number, since it uses less digits than its factorization.

199470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 199470 is about 446.6206443952. The cubic root of 199470 is about 58.4286514193.

The spelling of 199470 in words is "one hundred ninety-nine thousand, four hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 61 109 122 183 218 305 327 366 545 610 654 915 1090 1635 1830 3270 6649 13298 19947 33245 39894 66490 99735 199470