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2102260 = 225257409
BaseRepresentation
bin1000000001001111110100
310221210202111
420001033310
51014233020
6113020404
723604016
oct10011764
93853674
102102260
111206506
12854704
13587b54
143ca1b6
152b7d5a
hex2013f4

2102260 has 24 divisors (see below), whose sum is σ = 4442760. Its totient is φ = 835584.

The previous prime is 2102257. The next prime is 2102267. The reversal of 2102260 is 622012.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1281424 + 820836 = 1132^2 + 906^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2102260.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4936 + ... + 5344.

It is an arithmetic number, because the mean of its divisors is an integer number (185115).

22102260 is an apocalyptic number.

2102260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102260 is an abundant number, since it is smaller than the sum of its proper divisors (2340500).

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

2102260 is a wasteful number, since it uses less digits than its factorization.

2102260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2102260 is about 1449.9172390175. The cubic root of 2102260 is about 128.1038382659.

Adding to 2102260 its reverse (622012), we get a palindrome (2724272).

The spelling of 2102260 in words is "two million, one hundred two thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 257 409 514 818 1028 1285 1636 2045 2570 4090 5140 8180 105113 210226 420452 525565 1051130 2102260