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2249493180 = 2235113408323
BaseRepresentation
bin1000011000010100…
…1000101010111100
312210202211002112020
42012011020222330
514101332240210
61011114240140
7106513243104
oct20605105274
95722732466
102249493180
11a54864580
12529426050
1329b07016c
14174a82204
15d2746770
hex86148abc

2249493180 has 48 divisors (see below), whose sum is σ = 6871181184. Its totient is φ = 545331520.

The previous prime is 2249493149. The next prime is 2249493229. The reversal of 2249493180 is 813949422.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1703502 + ... + 1704821.

It is an arithmetic number, because the mean of its divisors is an integer number (143149608).

Almost surely, 22249493180 is an apocalyptic number.

2249493180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2249493180 is an abundant number, since it is smaller than the sum of its proper divisors (4621688004).

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

2249493180 is a wasteful number, since it uses less digits than its factorization.

2249493180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3408346 (or 3408344 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 2249493180 is about 47428.8222497671. The cubic root of 2249493180 is about 1310.2723012603.

The spelling of 2249493180 in words is "two billion, two hundred forty-nine million, four hundred ninety-three thousand, one hundred eighty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 660 3408323 6816646 10224969 13633292 17041615 20449938 34083230 37491553 40899876 51124845 68166460 74983106 102249690 112474659 149966212 187457765 204499380 224949318 374915530 449898636 562373295 749831060 1124746590 2249493180