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313212303103 = 744744614729
BaseRepresentation
bin1001000111011001110…
…10000111011011111111
31002221110022012120022111
410203230322013123333
520112424322144403
6355515430354451
731425456435430
oct4435472073377
91087408176274
10313212303103
111109181a8167
12508521bba27
13236c71a483b
1411233b73487
15823259a56d
hex48ece876ff

313212303103 has 4 divisors (see below), whose sum is σ = 357956917840. Its totient is φ = 268467688368.

The previous prime is 313212303067. The next prime is 313212303143. The reversal of 313212303103 is 301303212313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301303212313 = 595106834107.

It is a cyclic number.

It is not a de Polignac number, because 313212303103 - 221 = 313210205951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313212303143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22372307358 + ... + 22372307371.

It is an arithmetic number, because the mean of its divisors is an integer number (89489229460).

Almost surely, 2313212303103 is an apocalyptic number.

313212303103 is a deficient number, since it is larger than the sum of its proper divisors (44744614737).

313212303103 is an equidigital number, since it uses as much as digits as its factorization.

313212303103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44744614736.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 313212303103 its reverse (301303212313), we get a palindrome (614515515416).

The spelling of 313212303103 in words is "three hundred thirteen billion, two hundred twelve million, three hundred three thousand, one hundred three".

Divisors: 1 7 44744614729 313212303103