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31303100330 = 2531419240997
BaseRepresentation
bin11101001001110011…
…110110011110101010
32222210120022020222022
4131021303312132222
51003102043202310
622214102024442
72155501651115
oct351163663652
988716266868
1031303100330
1112303869657
126097418122
132c4b347298
14172d53557c
15c3322ca55
hex749cf67aa

31303100330 has 32 divisors (see below), whose sum is σ = 58302236160. Its totient is φ = 12088359360.

The previous prime is 31303100329. The next prime is 31303100341. The reversal of 31303100330 is 3300130313.

It is a super-2 number, since 2×313031003302 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31303100299 and 31303100308.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9392 + ... + 250388.

It is an arithmetic number, because the mean of its divisors is an integer number (1821944880).

Almost surely, 231303100330 is an apocalyptic number.

31303100330 is a deficient number, since it is larger than the sum of its proper divisors (26999135830).

31303100330 is a wasteful number, since it uses less digits than its factorization.

31303100330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241454.

The product of its (nonzero) digits is 243, while the sum is 17.

Adding to 31303100330 its reverse (3300130313), we get a palindrome (34603230643).

The spelling of 31303100330 in words is "thirty-one billion, three hundred three million, one hundred thousand, three hundred thirty".

Divisors: 1 2 5 10 31 62 155 310 419 838 2095 4190 12989 25978 64945 129890 240997 481994 1204985 2409970 7470907 14941814 37354535 74709070 100977743 201955486 504888715 1009777430 3130310033 6260620066 15651550165 31303100330