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103212423140 = 22575717093989
BaseRepresentation
bin110000000011111110…
…0001001011111100100
3100212102001101100100112
41200013330021133210
53142334340020030
6115225400232152
710312462056431
oct1400774113744
9325361340315
10103212423140
113a8547a4162
121800576b658
13996b20aa38
144dd1960b88
152a4128da95
hex1807f097e4

103212423140 has 48 divisors (see below), whose sum is σ = 217213844400. Its totient is φ = 41195976192.

The previous prime is 103212423107. The next prime is 103212423161. The reversal of 103212423140 is 41324212301.

It can be written as a sum of positive squares in 8 ways, for example, as 3844992064 + 99367431076 = 62008^2 + 315226^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25872266 + ... + 25876254.

It is an arithmetic number, because the mean of its divisors is an integer number (4525288425).

Almost surely, 2103212423140 is an apocalyptic number.

103212423140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103212423140 is an abundant number, since it is smaller than the sum of its proper divisors (114001421260).

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

103212423140 is a wasteful number, since it uses less digits than its factorization.

103212423140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6464 (or 6462 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 103212423140 its reverse (41324212301), we get a palindrome (144536635441).

The spelling of 103212423140 in words is "one hundred three billion, two hundred twelve million, four hundred twenty-three thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 757 1514 1709 3028 3418 3785 3989 6836 7570 7978 8545 15140 15956 17090 19945 34180 39890 79780 1293713 2587426 3019673 5174852 6039346 6468565 6817201 12078692 12937130 13634402 15098365 25874260 27268804 30196730 34086005 60393460 68172010 136344020 5160621157 10321242314 20642484628 25803105785 51606211570 103212423140