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1108439040 = 2123518041
BaseRepresentation
bin100001000010001…
…0111000000000000
32212020201112111210
41002010113000000
54232230022130
6301553410120
736316401462
oct10204270000
92766645453
101108439040
11519759725
1226b269940
13148846bb7
14a72d8132
15674a15b0
hex42117000

1108439040 has 104 divisors (see below), whose sum is σ = 3546768528. Its totient is φ = 295567360.

The previous prime is 1108439039. The next prime is 1108439041. The reversal of 1108439040 is 409348011.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1108439039) and next prime (1108439041).

It is a super-2 number, since 2×11084390402 = 2457274210792243200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1108438989 and 1108439007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1108439041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52420 + ... + 70460.

Almost surely, 21108439040 is an apocalyptic number.

1108439040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1108439040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1773384264).

1108439040 is an abundant number, since it is smaller than the sum of its proper divisors (2438329488).

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

1108439040 is an equidigital number, since it uses as much as digits as its factorization.

1108439040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18073 (or 18051 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 1108439040 is about 33293.2281402690. The cubic root of 1108439040 is about 1034.9132275733.

The spelling of 1108439040 in words is "one billion, one hundred eight million, four hundred thirty-nine thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 256 320 384 480 512 640 768 960 1024 1280 1536 1920 2048 2560 3072 3840 4096 5120 6144 7680 10240 12288 15360 18041 20480 30720 36082 54123 61440 72164 90205 108246 144328 180410 216492 270615 288656 360820 432984 541230 577312 721640 865968 1082460 1154624 1443280 1731936 2164920 2309248 2886560 3463872 4329840 4618496 5773120 6927744 8659680 9236992 11546240 13855488 17319360 18473984 23092480 27710976 34638720 36947968 46184960 55421952 69277440 73895936 92369920 110843904 138554880 184739840 221687808 277109760 369479680 554219520 1108439040