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103203123220 = 22553100996493
BaseRepresentation
bin110000000011101100…
…0101011000000010100
3100212101101212212021001
41200013120223000110
53142324444420340
6115224425033044
710312320034111
oct1400730530024
9325341785231
10103203123220
113a84a521a7a
1218002625784
139969302a22
144dd061d908
152a4055329a
hex180762b014

103203123220 has 48 divisors (see below), whose sum is σ = 221036875920. Its totient is φ = 40461797376.

The previous prime is 103203123211. The next prime is 103203123229. The reversal of 103203123220 is 22321302301.

It is an interprime number because it is at equal distance from previous prime (103203123211) and next prime (103203123229).

It can be written as a sum of positive squares in 8 ways, for example, as 6498294544 + 96704828676 = 80612^2 + 310974^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103203123229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1021294 + ... + 1117786.

It is an arithmetic number, because the mean of its divisors is an integer number (4604934915).

Almost surely, 2103203123220 is an apocalyptic number.

103203123220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103203123220 is an abundant number, since it is smaller than the sum of its proper divisors (117833752700).

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

103203123220 is a wasteful number, since it uses less digits than its factorization.

103203123220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97564 (or 97562 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 103203123220 its reverse (22321302301), we get a palindrome (125524425521).

The spelling of 103203123220 in words is "one hundred three billion, two hundred three million, one hundred twenty-three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 53 106 212 265 530 1009 1060 2018 4036 5045 10090 20180 53477 96493 106954 192986 213908 267385 385972 482465 534770 964930 1069540 1929860 5114129 10228258 20456516 25570645 51141290 97361437 102282580 194722874 389445748 486807185 973614370 1947228740 5160156161 10320312322 20640624644 25800780805 51601561610 103203123220