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31300210022 = 2193775310459
BaseRepresentation
bin11101001001101000…
…110100110101100110
32222210100212102012212
4131021220310311212
51003100323210042
622213520043422
72155435252424
oct351150646546
988710772185
1031300210022
1112302175074
126096463572
132c4a874843
14172cdc2114
15c32d5b482
hex749a34d66

31300210022 has 16 divisors (see below), whose sum is σ = 47204180880. Its totient is φ = 15565519872.

The previous prime is 31300210021. The next prime is 31300210043. The reversal of 31300210022 is 22001200313.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31300209979 and 31300210006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31300210021) 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, 2987429 + ... + 2997887.

It is an arithmetic number, because the mean of its divisors is an integer number (2950261305).

Almost surely, 231300210022 is an apocalyptic number.

31300210022 is a deficient number, since it is larger than the sum of its proper divisors (15903970858).

31300210022 is a wasteful number, since it uses less digits than its factorization.

31300210022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18407.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 31300210022 its reverse (22001200313), we get a palindrome (53301410335).

The spelling of 31300210022 in words is "thirty-one billion, three hundred million, two hundred ten thousand, twenty-two".

Divisors: 1 2 193 386 7753 10459 15506 20918 1496329 2018587 2992658 4037174 81088627 162177254 15650105011 31300210022