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312103020103 = 72941239156899
BaseRepresentation
bin1001000101010101100…
…10100010011001000111
31002211120222220011002221
410202222302202121013
520103141333120403
6355213402513211
731356126620260
oct4425262423107
91084528804087
10312103020103
111103a9022456
12505a2805807
132357b423774
141116a6d9967
1581b9ecddbd
hex48aaca2647

312103020103 has 32 divisors (see below), whose sum is σ = 379572480000. Its totient is φ = 250936385280.

The previous prime is 312103020071. The next prime is 312103020107. The reversal of 312103020103 is 301020301213.

It is not a de Polignac number, because 312103020103 - 25 = 312103020071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312103020107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1910748 + ... + 2067646.

It is an arithmetic number, because the mean of its divisors is an integer number (11861640000).

Almost surely, 2312103020103 is an apocalyptic number.

312103020103 is a deficient number, since it is larger than the sum of its proper divisors (67469459897).

312103020103 is a wasteful number, since it uses less digits than its factorization.

312103020103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157215.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 312103020103 its reverse (301020301213), we get a palindrome (613123321316).

The spelling of 312103020103 in words is "three hundred twelve billion, one hundred three million, twenty thousand, one hundred three".

Divisors: 1 7 29 41 203 239 287 1189 1673 6931 8323 9799 48517 68593 156899 284171 1098293 1989197 4550071 6432859 31850497 37498861 45030013 186552911 262492027 1087466969 1305870377 1537453301 7612268783 10762173107 44586145729 312103020103