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103423031420 = 225233137547
BaseRepresentation
bin110000001010001111…
…1100011100001111100
3100212221201200100121012
41200110133203201330
53143302244001140
6115302322254352
710320630155642
oct1402437434174
9325851610535
10103423031420
113a952672295
12180641b73b8
1399a2a3a717
145011905192
152a549e1265
hex18147e387c

103423031420 has 96 divisors (see below), whose sum is σ = 234216493056. Its totient is φ = 38289007680.

The previous prime is 103423031357. The next prime is 103423031567. The reversal of 103423031420 is 24130324301.

103423031420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13700087 + ... + 13707633.

It is an arithmetic number, because the mean of its divisors is an integer number (2439755136).

Almost surely, 2103423031420 is an apocalyptic number.

103423031420 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 103423031420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117108246528).

103423031420 is an abundant number, since it is smaller than the sum of its proper divisors (130793461636).

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

103423031420 is an equidigital number, since it uses as much as digits as its factorization.

103423031420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7672 (or 7608 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 103423031420 its reverse (24130324301), we get a palindrome (127553355721).

The spelling of 103423031420 in words is "one hundred three billion, four hundred twenty-three million, thirty-one thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 23 31 46 62 92 115 124 155 230 310 460 620 713 961 1426 1922 2852 3565 3844 4805 7130 7547 9610 14260 15094 19220 22103 29791 30188 37735 44206 59582 75470 88412 110515 119164 148955 150940 173581 221030 233957 297910 347162 442060 467914 595820 685193 694324 867905 935828 1169785 1370386 1735810 2339570 2740772 3425965 3471620 4679140 5381011 6851930 7252667 10762022 13703860 14505334 21524044 26905055 29010668 36263335 53810110 72526670 107620220 145053340 166811341 224832677 333622682 449665354 667245364 834056705 899330708 1124163385 1668113410 2248326770 3336226820 4496653540 5171151571 10342303142 20684606284 25855757855 51711515710 103423031420