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1310042312 = 23193848473
BaseRepresentation
bin100111000010101…
…1010100011001000
310101022002001012122
41032011122203020
510140332323222
6333554430412
744315114225
oct11605324310
93338061178
101310042312
116125371a7
12306892408
1317b542b87
14c5db694c
157a025a42
hex4e15a8c8

1310042312 has 16 divisors (see below), whose sum is σ = 2469059340. Its totient is φ = 651626496.

The previous prime is 1310042311. The next prime is 1310042323. The reversal of 1310042312 is 2132400131.

It can be written as a sum of positive squares in 2 ways, for example, as 1205061796 + 104980516 = 34714^2 + 10246^2 .

It is not an unprimeable number, because it can be changed into a prime (1310042311) 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 3 ways as a sum of consecutive naturals, for example, 422693 + ... + 425780.

Almost surely, 21310042312 is an apocalyptic number.

It is an amenable number.

1310042312 is a deficient number, since it is larger than the sum of its proper divisors (1159017028).

1310042312 is a wasteful number, since it uses less digits than its factorization.

1310042312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848672 (or 848668 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1310042312 is about 36194.5066550160. The cubic root of 1310042312 is about 1094.1959616746.

Adding to 1310042312 its reverse (2132400131), we get a palindrome (3442442443).

The spelling of 1310042312 in words is "one billion, three hundred ten million, forty-two thousand, three hundred twelve".

Divisors: 1 2 4 8 193 386 772 1544 848473 1696946 3393892 6787784 163755289 327510578 655021156 1310042312