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31303333030 = 253130333303
BaseRepresentation
bin11101001001110100…
…101111010010100110
32222210120202002011211
4131021310233102212
51003102123124110
622214111022034
72155503640414
oct351164572246
988716662154
1031303333030
1112303a08472
12609750a91a
132c4b3c9188
14172d5962b4
15c3327698a
hex749d2f4a6

31303333030 has 8 divisors (see below), whose sum is σ = 56345999472. Its totient is φ = 12521333208.

The previous prime is 31303333021. The next prime is 31303333031. The reversal of 31303333030 is 3033330313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 31303332992 and 31303333010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31303333031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1565166642 + ... + 1565166661.

It is an arithmetic number, because the mean of its divisors is an integer number (7043249934).

Almost surely, 231303333030 is an apocalyptic number.

31303333030 is a deficient number, since it is larger than the sum of its proper divisors (25042666442).

31303333030 is a wasteful number, since it uses less digits than its factorization.

31303333030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3130333310.

The product of its (nonzero) digits is 2187, while the sum is 22.

Adding to 31303333030 its reverse (3033330313), we get a palindrome (34336663343).

The spelling of 31303333030 in words is "thirty-one billion, three hundred three million, three hundred thirty-three thousand, thirty".

Divisors: 1 2 5 10 3130333303 6260666606 15651666515 31303333030