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31103133232230 = 2335115196789749
BaseRepresentation
bin1110001001001110000110…
…01101010010110001100110
311002010102121211111012211000
413010213003031102301212
513034043204101412410
6150052325424454130
76360061431221463
oct704470315226146
9132112554435730
1031103133232230
119a01845941874
1235a3bb447a346
1314480223a9797
14797584a1c66a
1538e0e5889dc0
hex1c49c3352c66

31103133232230 has 32 divisors (see below), whose sum is σ = 82941688620000. Its totient is φ = 8294168861856.

The previous prime is 31103133232201. The next prime is 31103133232247. The reversal of 31103133232230 is 3223233130113.

31103133232230 is a `hidden beast` number, since 3 + 1 + 1 + 0 + 3 + 1 + 332 + 322 + 3 + 0 = 666.

It is a super-2 number, since 2×311031332322302 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 31103133232194 and 31103133232203.

It is a congruent number.

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, 57598394605 + ... + 57598395144.

It is an arithmetic number, because the mean of its divisors is an integer number (2591927769375).

Almost surely, 231103133232230 is an apocalyptic number.

31103133232230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31103133232230 is an abundant number, since it is smaller than the sum of its proper divisors (51838555387770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31103133232230 is a wasteful number, since it uses less digits than its factorization.

31103133232230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115196789765 (or 115196789759 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 31103133232230 its reverse (3223233130113), we get a palindrome (34326366362343).

The spelling of 31103133232230 in words is "thirty-one trillion, one hundred three billion, one hundred thirty-three million, two hundred thirty-two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 115196789749 230393579498 345590369247 575983948745 691180738494 1036771107741 1151967897490 1727951846235 2073542215482 3110313323223 3455903692470 5183855538705 6220626646446 10367711077410 15551566616115 31103133232230