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105943040 = 21257739
BaseRepresentation
bin1100101000010…
…01000000000000
321101100110112022
412110021000000
5204110134130
614302421012
72424333560
oct624110000
9241313468
10105943040
1154890635
122b591768
1318c448b8
14100dada0
15947a7e5
hex6509000

105943040 has 104 divisors (see below), whose sum is σ = 290944320. Its totient is φ = 36274176.

The previous prime is 105943009. The next prime is 105943043. The reversal of 105943040 is 40349501.

It is a super-2 number, since 2×1059430402 = 22447855448883200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105943043) 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, 142991 + ... + 143729.

Almost surely, 2105943040 is an apocalyptic number.

105943040 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 105943040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145472160).

105943040 is an abundant number, since it is smaller than the sum of its proper divisors (185001280).

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

105943040 is an frugal number, since it uses more digits than its factorization.

105943040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775 (or 753 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 105943040 is about 10292.8635471379. The cubic root of 105943040 is about 473.1775634139.

The spelling of 105943040 in words is "one hundred five million, nine hundred forty-three thousand, forty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 80 112 128 140 160 224 256 280 320 448 512 560 640 739 896 1024 1120 1280 1478 1792 2048 2240 2560 2956 3584 3695 4096 4480 5120 5173 5912 7168 7390 8960 10240 10346 11824 14336 14780 17920 20480 20692 23648 25865 28672 29560 35840 41384 47296 51730 59120 71680 82768 94592 103460 118240 143360 165536 189184 206920 236480 331072 378368 413840 472960 662144 756736 827680 945920 1324288 1513472 1655360 1891840 2648576 3026944 3310720 3783680 5297152 6621440 7567360 10594304 13242880 15134720 21188608 26485760 52971520 105943040