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1244110340 = 2251153106699
BaseRepresentation
bin100101000100111…
…1001111000000100
310012201000100112202
41022021321320010
510021443012330
6323241334032
742554522564
oct11211717004
93181010482
101244110340
115892a4570
122a8797318
1316a999b85
14bb332da4
1574350445
hex4a279e04

1244110340 has 48 divisors (see below), whose sum is σ = 2903947200. Its totient is φ = 443863680.

The previous prime is 1244110339. The next prime is 1244110349. The reversal of 1244110340 is 430114421.

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

It is not an unprimeable number, because it can be changed into a prime (1244110349) by changing a digit.

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, 41690 + ... + 65009.

It is an arithmetic number, because the mean of its divisors is an integer number (60498900).

Almost surely, 21244110340 is an apocalyptic number.

1244110340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1244110340 is an abundant number, since it is smaller than the sum of its proper divisors (1659836860).

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

1244110340 is a wasteful number, since it uses less digits than its factorization.

1244110340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106772 (or 106770 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1244110340 is about 35271.9483442579. The cubic root of 1244110340 is about 1075.5228291480.

Adding to 1244110340 its reverse (430114421), we get a palindrome (1674224761).

The spelling of 1244110340 in words is "one billion, two hundred forty-four million, one hundred ten thousand, three hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 53 55 106 110 212 220 265 530 583 1060 1166 2332 2915 5830 11660 106699 213398 426796 533495 1066990 1173689 2133980 2347378 4694756 5655047 5868445 11310094 11736890 22620188 23473780 28275235 56550470 62205517 113100940 124411034 248822068 311027585 622055170 1244110340