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105530031340 = 2256917636037
BaseRepresentation
bin110001001001000010…
…1000111110011101100
3101002101120101001010021
41202102011013303230
53212111142000330
6120251350451524
710424063315566
oct1422205076354
9332346331107
10105530031340
1140833a51538
1218551963ba4
139c4a409736
145171694336
152b2998c67a
hex1892147cec

105530031340 has 24 divisors (see below), whose sum is σ = 221933808432. Its totient is φ = 42150918720.

The previous prime is 105530031337. The next prime is 105530031349. The reversal of 105530031340 is 43130035501.

It is a super-2 number, since 2×1055300313402 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105530031349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3804199 + ... + 3831838.

It is an arithmetic number, because the mean of its divisors is an integer number (9247242018).

Almost surely, 2105530031340 is an apocalyptic number.

105530031340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105530031340 is an abundant number, since it is smaller than the sum of its proper divisors (116403777092).

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

105530031340 is a wasteful number, since it uses less digits than its factorization.

105530031340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7636737 (or 7636735 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

Adding to 105530031340 its reverse (43130035501), we get a palindrome (148660066841).

The spelling of 105530031340 in words is "one hundred five billion, five hundred thirty million, thirty-one thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 691 1382 2764 3455 6910 13820 7636037 15272074 30544148 38180185 76360370 152720740 5276501567 10553003134 21106006268 26382507835 52765015670 105530031340