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31023013331230 = 253738317161751
BaseRepresentation
bin1110000110111000110111…
…01100001000000100011110
311001211202211010202112120021
413003130123230020010132
513031240112403044410
6145551435305142354
76351224122260334
oct703343354100436
9131752733675507
1031023013331230
119980871291358
12359057448a9ba
1314405c4483b3b
14793743d91b54
1538bea6ad4eda
hex1c371bb0811e

31023013331230 has 16 divisors (see below), whose sum is σ = 55991132914464. Its totient is φ = 12375936684000.

The previous prime is 31023013331197. The next prime is 31023013331249. The reversal of 31023013331230 is 3213331032013.

It is a super-2 number, since 2×310230133312302 (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31023013331195 and 31023013331204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4158577146 + ... + 4158584605.

It is an arithmetic number, because the mean of its divisors is an integer number (3499445807154).

Almost surely, 231023013331230 is an apocalyptic number.

31023013331230 is a deficient number, since it is larger than the sum of its proper divisors (24968119583234).

31023013331230 is a wasteful number, since it uses less digits than its factorization.

31023013331230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8317162131.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 31023013331230 its reverse (3213331032013), we get a palindrome (34236344363243).

The spelling of 31023013331230 in words is "thirty-one trillion, twenty-three billion, thirteen million, three hundred thirty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 373 746 1865 3730 8317161751 16634323502 41585808755 83171617510 3102301333123 6204602666246 15511506665615 31023013331230