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2802144 = 253172101
BaseRepresentation
bin1010101100000111100000
312021100211010
422230013200
51204132034
6140020520
732550342
oct12540740
95240733
102802144
111644324
12b31740
13771597
1452d292
153a53e9
hex2ac1e0

2802144 has 72 divisors (see below), whose sum is σ = 7891128. Its totient is φ = 870400.

The previous prime is 2802143. The next prime is 2802169. The reversal of 2802144 is 4412082.

2802144 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2802144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2802143) 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, 27694 + ... + 27794.

It is an arithmetic number, because the mean of its divisors is an integer number (109599).

22802144 is an apocalyptic number.

2802144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2802144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3945564).

2802144 is an abundant number, since it is smaller than the sum of its proper divisors (5088984).

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

2802144 is a wasteful number, since it uses less digits than its factorization.

2802144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 2802144 is about 1673.9605730124. The cubic root of 2802144 is about 140.9819402452.

The spelling of 2802144 in words is "two million, eight hundred two thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 12 16 17 24 32 34 48 51 68 96 101 102 136 202 204 272 289 303 404 408 544 578 606 808 816 867 1156 1212 1616 1632 1717 1734 2312 2424 3232 3434 3468 4624 4848 5151 6868 6936 9248 9696 10302 13736 13872 20604 27472 27744 29189 41208 54944 58378 82416 87567 116756 164832 175134 233512 350268 467024 700536 934048 1401072 2802144