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1313020000 = 255465651
BaseRepresentation
bin100111001000011…
…0001100001100000
310101111200022211101
41032100301201200
510142113120000
6334142324144
744352325435
oct11620614140
93344608741
101313020000
116141903a6
12307889654
1317c046316
14c654db8c
157a412e6a
hex4e431860

1313020000 has 60 divisors (see below), whose sum is σ = 3230275356. Its totient is φ = 525200000.

The previous prime is 1313019997. The next prime is 1313020013. The reversal of 1313020000 is 203131.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 12826 + ... + 52825.

Almost surely, 21313020000 is an apocalyptic number.

1313020000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313020000 is an abundant number, since it is smaller than the sum of its proper divisors (1917255356).

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

1313020000 is an frugal number, since it uses more digits than its factorization.

1313020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65681 (or 65658 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 1313020000 is about 36235.6178365983. The cubic root of 1313020000 is about 1095.0243595284.

Adding to 1313020000 its reverse (203131), we get a palindrome (1313223131).

The spelling of 1313020000 in words is "one billion, three hundred thirteen million, twenty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 625 800 1000 1250 2000 2500 4000 5000 10000 20000 65651 131302 262604 328255 525208 656510 1050416 1313020 1641275 2100832 2626040 3282550 5252080 6565100 8206375 10504160 13130200 16412750 26260400 32825500 41031875 52520800 65651000 82063750 131302000 164127500 262604000 328255000 656510000 1313020000