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1264160 = 2557901
BaseRepresentation
bin100110100101000100000
32101020002202
410310220200
5310423120
643032332
713513412
oct4645040
92336082
101264160
11793867
1250b6a8
13353531
1424c9b2
1519e875
hex134a20

1264160 has 24 divisors (see below), whose sum is σ = 2986956. Its totient is φ = 505600.

The previous prime is 1264129. The next prime is 1264177. The reversal of 1264160 is 614621.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1263376 + 784 = 1124^2 + 28^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3791 + ... + 4110.

21264160 is an apocalyptic number.

1264160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1264160 is an abundant number, since it is smaller than the sum of its proper divisors (1722796).

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

1264160 is an equidigital number, since it uses as much as digits as its factorization.

1264160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7916 (or 7908 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1264160 is about 1124.3487003595. The cubic root of 1264160 is about 108.1269654493.

Adding to 1264160 its reverse (614621), we get a palindrome (1878781).

The spelling of 1264160 in words is "one million, two hundred sixty-four thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 7901 15802 31604 39505 63208 79010 126416 158020 252832 316040 632080 1264160