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3143924 = 227472389
BaseRepresentation
bin1011111111100011110100
312220201122122
423333203310
51301101144
6151215112
735502650
oct13774364
95821578
103143924
111858093
121077498
13861014
145bba60
154217ee
hex2ff8f4

3143924 has 24 divisors (see below), whose sum is σ = 6424320. Its totient is φ = 1318176.

The previous prime is 3143897. The next prime is 3143953. The reversal of 3143924 is 4293413.

It is a junction number, because it is equal to n+sod(n) for n = 3143893 and 3143902.

It is a congruent 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, 122 + ... + 2510.

It is an arithmetic number, because the mean of its divisors is an integer number (267680).

Almost surely, 23143924 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3143924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3212160).

3143924 is an abundant number, since it is smaller than the sum of its proper divisors (3280396).

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

3143924 is a wasteful number, since it uses less digits than its factorization.

3143924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2447 (or 2445 counting only the distinct ones).

The product of its digits is 2592, while the sum is 26.

The square root of 3143924 is about 1773.1113896200. Note that the first 3 decimals coincide. The cubic root of 3143924 is about 146.4954084611.

The spelling of 3143924 in words is "three million, one hundred forty-three thousand, nine hundred twenty-four".

Divisors: 1 2 4 7 14 28 47 94 188 329 658 1316 2389 4778 9556 16723 33446 66892 112283 224566 449132 785981 1571962 3143924