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10503020203 = 131942522349
BaseRepresentation
bin10011100100000011…
…10101111010101011
31000002222021201010021
421302001311322223
5133002233121303
64454112101311
7521163125104
oct116201657253
930088251107
1010503020203
1144aa754595
122051534837
13cb4c8c170
14718ca33ab
15417120ebd
hex272075eab

10503020203 has 8 divisors (see below), whose sum is σ = 11906258000. Its totient is φ = 9184827168.

The previous prime is 10503020191. The next prime is 10503020221. The reversal of 10503020203 is 30202030501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10503020203 is a prime.

It is a super-2 number, since 2×105030202032 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10503020233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21260928 + ... + 21261421.

It is an arithmetic number, because the mean of its divisors is an integer number (1488282250).

Almost surely, 210503020203 is an apocalyptic number.

10503020203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

10503020203 is a deficient number, since it is larger than the sum of its proper divisors (1403237797).

10503020203 is a wasteful number, since it uses less digits than its factorization.

10503020203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42522381.

The product of its (nonzero) digits is 180, while the sum is 16.

Adding to 10503020203 its reverse (30202030501), we get a palindrome (40705050704).

The spelling of 10503020203 in words is "ten billion, five hundred three million, twenty thousand, two hundred three".

Divisors: 1 13 19 247 42522349 552790537 807924631 10503020203