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31054440000 = 26354258787
BaseRepresentation
bin11100111010111111…
…010010011001000000
32222011020102000010110
4130322333102121000
51002044414040000
622133300231320
72146362245643
oct347277223100
988136360113
1031054440000
1112196470451
12602809b540
132c0b9835ac
1417084c7a5a
15c1b4b0850
hex73afd2640

31054440000 has 140 divisors (see below), whose sum is σ = 102673621424. Its totient is φ = 8281152000.

The previous prime is 31054439917. The next prime is 31054440059. The reversal of 31054440000 is 4445013.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9394 + ... + 249393.

Almost surely, 231054440000 is an apocalyptic number.

31054440000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31054440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51336810712).

31054440000 is an abundant number, since it is smaller than the sum of its proper divisors (71619181424).

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

31054440000 is an equidigital number, since it uses as much as digits as its factorization.

31054440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258822 (or 258797 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 31054440000 its reverse (4445013), we get a palindrome (31058885013).

The spelling of 31054440000 in words is "thirty-one billion, fifty-four million, four hundred forty thousand".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 48 50 60 64 75 80 96 100 120 125 150 160 192 200 240 250 300 320 375 400 480 500 600 625 750 800 960 1000 1200 1250 1500 1600 1875 2000 2400 2500 3000 3750 4000 4800 5000 6000 7500 8000 10000 12000 15000 20000 24000 30000 40000 60000 120000 258787 517574 776361 1035148 1293935 1552722 2070296 2587870 3105444 3881805 4140592 5175740 6210888 6469675 7763610 8281184 10351480 12421776 12939350 15527220 16562368 19409025 20702960 24843552 25878700 31054440 32348375 38818050 41405920 49687104 51757400 62108880 64696750 77636100 82811840 97045125 103514800 124217760 129393500 155272200 161741875 194090250 207029600 248435520 258787000 310544400 323483750 388180500 414059200 485225625 517574000 621088800 646967500 776361000 970451250 1035148000 1242177600 1293935000 1552722000 1940902500 2070296000 2587870000 3105444000 3881805000 5175740000 6210888000 7763610000 10351480000 15527220000 31054440000