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31300231303 = 112845475573
BaseRepresentation
bin11101001001101000…
…111010000010000111
32222210100220111102001
4131021220322002013
51003100324400203
622213520330131
72155435401445
oct351150720207
988710814361
1031300231303
111230218a060
126096473947
132c4a881433
14172cdc9b95
15c32d6291d
hex749a3a087

31300231303 has 4 divisors (see below), whose sum is σ = 34145706888. Its totient is φ = 28454755720.

The previous prime is 31300231279. The next prime is 31300231337. The reversal of 31300231303 is 30313200313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31300231303 - 213 = 31300223111 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 (31300231393) 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, 1422737776 + ... + 1422737797.

It is an arithmetic number, because the mean of its divisors is an integer number (8536426722).

Almost surely, 231300231303 is an apocalyptic number.

31300231303 is a deficient number, since it is larger than the sum of its proper divisors (2845475585).

31300231303 is a wasteful number, since it uses less digits than its factorization.

31300231303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2845475584.

The product of its (nonzero) digits is 486, while the sum is 19.

Adding to 31300231303 its reverse (30313200313), we get a palindrome (61613431616).

The spelling of 31300231303 in words is "thirty-one billion, three hundred million, two hundred thirty-one thousand, three hundred three".

Divisors: 1 11 2845475573 31300231303