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1311412330 = 254789107293
BaseRepresentation
bin100111000101010…
…1001000001101010
310101101122122112001
41032022221001222
510141210143310
6334044041214
744332551364
oct11612510152
93341578461
101311412330
11613292548
1230723320a
1317b902637
14c6251d34
157a1e693a
hex4e2a906a

1311412330 has 64 divisors (see below), whose sum is σ = 2469035520. Its totient is φ = 501174784.

The previous prime is 1311412327. The next prime is 1311412339. The reversal of 1311412330 is 332141131.

It is a junction number, because it is equal to n+sod(n) for n = 1311412298 and 1311412307.

It is not an unprimeable number, because it can be changed into a prime (1311412339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4475664 + ... + 4475956.

It is an arithmetic number, because the mean of its divisors is an integer number (38578680).

Almost surely, 21311412330 is an apocalyptic number.

1311412330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311412330 is a deficient number, since it is larger than the sum of its proper divisors (1157623190).

1311412330 is a wasteful number, since it uses less digits than its factorization.

1311412330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1311412330 is about 36213.4274820818. The cubic root of 1311412330 is about 1094.5772587485.

Adding to 1311412330 its reverse (332141131), we get a palindrome (1643553461).

The spelling of 1311412330 in words is "one billion, three hundred eleven million, four hundred twelve thousand, three hundred thirty".

Divisors: 1 2 5 10 47 89 94 107 178 214 235 293 445 470 535 586 890 1070 1465 2930 4183 5029 8366 9523 10058 13771 19046 20915 25145 26077 27542 31351 41830 47615 50290 52154 62702 68855 95230 130385 137710 156755 260770 313510 447581 895162 1225619 1473497 2237905 2451238 2790239 2946994 4475810 5580478 6128095 7367485 12256190 13951195 14734970 27902390 131141233 262282466 655706165 1311412330