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1468820 = 2252712
BaseRepresentation
bin101100110100110010100
32202121211202
411212212110
5334000240
651252032
715325163
oct5464624
92677752
101468820
11913601
125aa018
133c5732
142a33da
151e0315
hex166994

1468820 has 18 divisors (see below), whose sum is σ = 3095946. Its totient is φ = 585360.

The previous prime is 1468807. The next prime is 1468877. The reversal of 1468820 is 288641.

It can be written as a sum of positive squares in only one way, i.e., 1175056 + 293764 = 1084^2 + 542^2 .

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5285 + ... + 5555.

It is an arithmetic number, because the mean of its divisors is an integer number (171997).

21468820 is an apocalyptic number.

1468820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1468820 is an abundant number, since it is smaller than the sum of its proper divisors (1627126).

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

1468820 is an equidigital number, since it uses as much as digits as its factorization.

1468820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 1468820 is about 1211.9488438049. The cubic root of 1468820 is about 113.6727044013.

The spelling of 1468820 in words is "one million, four hundred sixty-eight thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 271 542 1084 1355 2710 5420 73441 146882 293764 367205 734410 1468820