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31330003030 = 2515269205187
BaseRepresentation
bin11101001011011010…
…011110100001010110
32222212102221001112121
4131023122132201112
51003130440044110
622220502410154
72156246426464
oct351332364126
988772831477
1031330003030
1112317a73a97
1260a443095a
132c53aa6541
141732d39834
15c35793cda
hex74b69e856

31330003030 has 16 divisors (see below), whose sum is σ = 56397973680. Its totient is φ = 12531119392.

The previous prime is 31330003009. The next prime is 31330003031. The reversal of 31330003030 is 3030003313.

It is a junction number, because it is equal to n+sod(n) for n = 31330002995 and 31330003013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31330003031) 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 7 ways as a sum of consecutive naturals, for example, 50097 + ... + 255283.

It is an arithmetic number, because the mean of its divisors is an integer number (3524873355).

Almost surely, 231330003030 is an apocalyptic number.

31330003030 is a deficient number, since it is larger than the sum of its proper divisors (25067970650).

31330003030 is a wasteful number, since it uses less digits than its factorization.

31330003030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220463.

The product of its (nonzero) digits is 243, while the sum is 16.

Adding to 31330003030 its reverse (3030003313), we get a palindrome (34360006343).

The spelling of 31330003030 in words is "thirty-one billion, three hundred thirty million, three thousand, thirty".

Divisors: 1 2 5 10 15269 30538 76345 152690 205187 410374 1025935 2051870 3133000303 6266000606 15665001515 31330003030