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4231140 = 223597727
BaseRepresentation
bin10000001000111111100100
321221222000220
4100020333210
52040344030
6230404340
750651454
oct20107744
97858026
104231140
11242aa11
1215006b0
13b51b44
147c1d64
15588a10
hex408fe4

4231140 has 48 divisors (see below), whose sum is σ = 11985792. Its totient is φ = 1115136.

The previous prime is 4231121. The next prime is 4231177. The reversal of 4231140 is 411324.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an Ulam number.

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, 5457 + ... + 6183.

It is an arithmetic number, because the mean of its divisors is an integer number (249704).

Almost surely, 24231140 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 4231140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5992896).

4231140 is an abundant number, since it is smaller than the sum of its proper divisors (7754652).

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

4231140 is a wasteful number, since it uses less digits than its factorization.

4231140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836 (or 834 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 4231140 is about 2056.9735049339. The cubic root of 4231140 is about 161.7406305315.

Adding to 4231140 its reverse (411324), we get a palindrome (4642464).

It can be divided in two parts, 4231 and 140, that added together give a triangular number (4371 = T93).

The spelling of 4231140 in words is "four million, two hundred thirty-one thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 97 194 291 388 485 582 727 970 1164 1454 1455 1940 2181 2908 2910 3635 4362 5820 7270 8724 10905 14540 21810 43620 70519 141038 211557 282076 352595 423114 705190 846228 1057785 1410380 2115570 4231140