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1284052 = 227112379
BaseRepresentation
bin100111001011111010100
32102020101111
410321133110
5312042202
643304404
713625410
oct4713724
92366344
101284052
117a7800
1251b104
1335c5c3
14255d40
151a56d7
hex1397d4

1284052 has 36 divisors (see below), whose sum is σ = 2830240. Its totient is φ = 498960.

The previous prime is 1284047. The next prime is 1284053. The reversal of 1284052 is 2504821.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1284053) 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, 3199 + ... + 3577.

21284052 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 1284052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1415120).

1284052 is an abundant number, since it is smaller than the sum of its proper divisors (1546188).

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

1284052 is a wasteful number, since it uses less digits than its factorization.

1284052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412 (or 399 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 1284052 is about 1133.1601828515. The cubic root of 1284052 is about 108.6911550232.

Adding to 1284052 its reverse (2504821), we get a palindrome (3788873).

The spelling of 1284052 in words is "one million, two hundred eighty-four thousand, fifty-two".

Divisors: 1 2 4 7 11 14 22 28 44 77 121 154 242 308 379 484 758 847 1516 1694 2653 3388 4169 5306 8338 10612 16676 29183 45859 58366 91718 116732 183436 321013 642026 1284052