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103442310020 = 22572332124941
BaseRepresentation
bin110000001010110100…
…1000110001110000100
3100220000001221210212102
41200111221012032010
53143322212410040
6115304251411232
710321253061530
oct1402551061604
9326001853772
10103442310020
113a96253a615
121806a753b18
1399a6a2a68a
1450142c2bc0
152a5654d515
hex1815a46384

103442310020 has 48 divisors (see below), whose sum is σ = 259055532288. Its totient is φ = 33923936640.

The previous prime is 103442309989. The next prime is 103442310053. The reversal of 103442310020 is 20013244301.

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

It is a junction number, because it is equal to n+sod(n) for n = 103442309974 and 103442310001.

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, 16059251 + ... + 16065690.

It is an arithmetic number, because the mean of its divisors is an integer number (5396990256).

Almost surely, 2103442310020 is an apocalyptic number.

103442310020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103442310020 is an abundant number, since it is smaller than the sum of its proper divisors (155613222268).

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

103442310020 is a wasteful number, since it uses less digits than its factorization.

103442310020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32124980 (or 32124978 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 103442310020 its reverse (20013244301), we get a palindrome (123455554321).

The spelling of 103442310020 in words is "one hundred three billion, four hundred forty-two million, three hundred ten thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 23 28 35 46 70 92 115 140 161 230 322 460 644 805 1610 3220 32124941 64249882 128499764 160624705 224874587 321249410 449749174 642498820 738873643 899498348 1124372935 1477747286 2248745870 2955494572 3694368215 4497491740 5172115501 7388736430 10344231002 14777472860 20688462004 25860577505 51721155010 103442310020