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1313013302440 = 235743109054261
BaseRepresentation
bin10011000110110101101…
…100010000010010101000
311122112010011011201012121
4103012311230100102220
5133003022401134230
62443105011521024
7163601456631550
oct23066554202250
94575104151177
101313013302440
114669338629a4
121925795b9174
1396a80175bb8
144779b9b8160
152424b60377a
hex131b5b104a8

1313013302440 has 64 divisors (see below), whose sum is σ = 3454839020160. Its totient is φ = 439706776320.

The previous prime is 1313013302437. The next prime is 1313013302449. The reversal of 1313013302440 is 442033103131.

It is not an unprimeable number, because it can be changed into a prime (1313013302449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54515091 + ... + 54539170.

It is an arithmetic number, because the mean of its divisors is an integer number (53981859690).

Almost surely, 21313013302440 is an apocalyptic number.

1313013302440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313013302440 is an abundant number, since it is smaller than the sum of its proper divisors (2141825717720).

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

1313013302440 is a wasteful number, since it uses less digits than its factorization.

1313013302440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109054322 (or 109054318 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 1313013302440 its reverse (442033103131), we get a palindrome (1755046405571).

The spelling of 1313013302440 in words is "one trillion, three hundred thirteen billion, thirteen million, three hundred two thousand, four hundred forty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 43 56 70 86 140 172 215 280 301 344 430 602 860 1204 1505 1720 2408 3010 6020 12040 109054261 218108522 436217044 545271305 763379827 872434088 1090542610 1526759654 2181085220 3053519308 3816899135 4362170440 4689333223 6107038616 7633798270 9378666446 15267596540 18757332892 23446666115 30535193080 32825332561 37514665784 46893332230 65650665122 93786664460 131301330244 164126662805 187573328920 262602660488 328253325610 656506651220 1313013302440