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1313003222020 = 225711382996411
BaseRepresentation
bin10011000110110101000…
…101110011010000000100
311122112002110012120110201
4103012311011303100010
5133003012311101040
62443104011500244
7163601305145560
oct23066505632004
94575073176421
101313003222020
114669290a8376
12192576157684
1396a7b056859
144779a5126a0
152424a7b1a9a
hex131b5173404

1313003222020 has 48 divisors (see below), whose sum is σ = 3179094565248. Its totient is φ = 446188700160.

The previous prime is 1313003221997. The next prime is 1313003222021. The reversal of 1313003222020 is 202223003131.

It is a super-2 number, since 2×13130032220202 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1313003222021) 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, 41482386 + ... + 41514025.

It is an arithmetic number, because the mean of its divisors is an integer number (66231136776).

Almost surely, 21313003222020 is an apocalyptic number.

1313003222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313003222020 is an abundant number, since it is smaller than the sum of its proper divisors (1866091343228).

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

1313003222020 is a wasteful number, since it uses less digits than its factorization.

1313003222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82996540 (or 82996538 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 1313003222020 its reverse (202223003131), we get a palindrome (1515226225151).

The spelling of 1313003222020 in words is "one trillion, three hundred thirteen billion, three million, two hundred twenty-two thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 113 140 226 452 565 791 1130 1582 2260 3164 3955 7910 15820 82996411 165992822 331985644 414982055 580974877 829964110 1161949754 1659928220 2323899508 2904874385 5809748770 9378594443 11619497540 18757188886 37514377772 46892972215 65650161101 93785944430 131300322202 187571888860 262600644404 328250805505 656501611010 1313003222020