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3133872 = 243273109
BaseRepresentation
bin1011111101000110110000
312220012212100
423331012300
51300240442
6151100400
735431440
oct13750660
95805770
103133872
111850585
121071700
13859581
145b8120
1541d84c
hex2fd1b0

3133872 has 60 divisors (see below), whose sum is σ = 10026640. Its totient is φ = 895104.

The previous prime is 3133861. The next prime is 3133873. The reversal of 3133872 is 2783313.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (3133873) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 547 + ... + 2562.

Almost surely, 23133872 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 3133872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5013320).

3133872 is an abundant number, since it is smaller than the sum of its proper divisors (6892768).

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

3133872 is a wasteful number, since it uses less digits than its factorization.

3133872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3130 (or 3121 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 3133872 is about 1770.2745549773. The cubic root of 3133872 is about 146.3391129053.

It can be divided in two parts, 3133 and 872, that added together give a triangular number (4005 = T89).

The spelling of 3133872 in words is "three million, one hundred thirty-three thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 36 42 48 56 63 72 84 112 126 144 168 252 336 504 1008 3109 6218 9327 12436 18654 21763 24872 27981 37308 43526 49744 55962 65289 74616 87052 111924 130578 149232 174104 195867 223848 261156 348208 391734 447696 522312 783468 1044624 1566936 3133872