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1310440000 = 26541812
BaseRepresentation
bin100111000011011…
…1011101001000000
310101022211020201211
41032012323221000
510140433040000
6334011135504
744321361532
oct11606735100
93338736654
101310440000
11612788a71
12306a44594
1317b651bac
14c607b852
157a0a37ba
hex4e1bba40

1310440000 has 105 divisors (see below), whose sum is σ = 3267517341. Its totient is φ = 521280000.

The previous prime is 1310439997. The next prime is 1310440031. The reversal of 1310440000 is 440131.

The square root of 1310440000 is 36200.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 1269069376 + 41370624 = 35624^2 + 6432^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 7239910 + ... + 7240090.

Almost surely, 21310440000 is an apocalyptic number.

1310440000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1310440000 is the 36200-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1310440000

1310440000 is an abundant number, since it is smaller than the sum of its proper divisors (1957077341).

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

1310440000 is an frugal number, since it uses more digits than its factorization.

1310440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The cubic root of 1310440000 is about 1094.3066717320.

Adding to 1310440000 its reverse (440131), we get a palindrome (1310880131).

The spelling of 1310440000 in words is "one billion, three hundred ten million, four hundred forty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 160 181 200 250 320 362 400 500 625 724 800 905 1000 1250 1448 1600 1810 2000 2500 2896 3620 4000 4525 5000 5792 7240 8000 9050 10000 11584 14480 18100 20000 22625 28960 32761 36200 40000 45250 57920 65522 72400 90500 113125 131044 144800 163805 181000 226250 262088 289600 327610 362000 452500 524176 655220 724000 819025 905000 1048352 1310440 1448000 1638050 1810000 2096704 2620880 3276100 3620000 4095125 5241760 6552200 7240000 8190250 10483520 13104400 16380500 20475625 26208800 32761000 40951250 52417600 65522000 81902500 131044000 163805000 262088000 327610000 655220000 1310440000