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3143430 = 232553659
BaseRepresentation
bin1011111111011100000110
312220200222100
423333130012
51301042210
6151212530
735501343
oct13773406
95820870
103143430
111857784
121077146
13860a24
145bb7ca
154215c0
hex2ff706

3143430 has 48 divisors (see below), whose sum is σ = 8339760. Its totient is φ = 821184.

The previous prime is 3143411. The next prime is 3143447. The reversal of 3143430 is 343413.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4441 + ... + 5099.

It is an arithmetic number, because the mean of its divisors is an integer number (173745).

Almost surely, 23143430 is an apocalyptic number.

3143430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3143430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4169880).

3143430 is an abundant number, since it is smaller than the sum of its proper divisors (5196330).

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

3143430 is a wasteful number, since it uses less digits than its factorization.

3143430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725 (or 722 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 3143430 is about 1772.9720809985. The cubic root of 3143430 is about 146.4877351923.

Adding to 3143430 its reverse (343413), we get a palindrome (3486843).

The spelling of 3143430 in words is "three million, one hundred forty-three thousand, four hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 53 90 106 159 265 318 477 530 659 795 954 1318 1590 1977 2385 3295 3954 4770 5931 6590 9885 11862 19770 29655 34927 59310 69854 104781 174635 209562 314343 349270 523905 628686 1047810 1571715 3143430