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31300210233 = 323477801137
BaseRepresentation
bin11101001001101000…
…110100111000111001
32222210100212102111200
4131021220310320321
51003100323211413
622213520044413
72155435253145
oct351150647071
988710772450
1031300210233
1112302175246
126096463709
132c4a874976
14172cdc2225
15c32d5b573
hex749a34e39

31300210233 has 6 divisors (see below), whose sum is σ = 45211414794. Its totient is φ = 20866806816.

The previous prime is 31300210223. The next prime is 31300210237. The reversal of 31300210233 is 33201200313.

It can be written as a sum of positive squares in only one way, i.e., 18641260089 + 12658950144 = 136533^2 + 112512^2 .

It is not a de Polignac number, because 31300210233 - 230 = 30226468409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31300210237) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1738900560 + ... + 1738900577.

It is an arithmetic number, because the mean of its divisors is an integer number (7535235799).

Almost surely, 231300210233 is an apocalyptic number.

It is an amenable number.

31300210233 is a deficient number, since it is larger than the sum of its proper divisors (13911204561).

31300210233 is a wasteful number, since it uses less digits than its factorization.

31300210233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3477801143 (or 3477801140 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 31300210233 its reverse (33201200313), we get a palindrome (64501410546).

The spelling of 31300210233 in words is "thirty-one billion, three hundred million, two hundred ten thousand, two hundred thirty-three".

Divisors: 1 3 9 3477801137 10433403411 31300210233