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2100260 = 225195527
BaseRepresentation
bin1000000000110000100100
310221201000102
420000300210
51014202020
6113003232
723565131
oct10006044
93851012
102100260
111204a58
12853518
13586c76
143c9588
152b7475
hex200c24

2100260 has 24 divisors (see below), whose sum is σ = 4643520. Its totient is φ = 795744.

The previous prime is 2100257. The next prime is 2100269. The reversal of 2100260 is 620012.

It is a super-2 number, since 2×21002602 = 8822184135200, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2100269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2384 + ... + 3143.

It is an arithmetic number, because the mean of its divisors is an integer number (193480).

22100260 is an apocalyptic number.

2100260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100260 is an abundant number, since it is smaller than the sum of its proper divisors (2543260).

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

2100260 is a wasteful number, since it uses less digits than its factorization.

2100260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5555 (or 5553 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2100260 is about 1449.2273803651. The cubic root of 2100260 is about 128.0632012105.

Adding to 2100260 its reverse (620012), we get a palindrome (2720272).

The spelling of 2100260 in words is "two million, one hundred thousand, two hundred sixty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 5527 11054 22108 27635 55270 105013 110540 210026 420052 525065 1050130 2100260