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1031103340 = 225235342293
BaseRepresentation
bin111101011101010…
…110001101101100
32122212012110212121
4331131112031230
54102430301330
6250152042324
734360143121
oct7535261554
92585173777
101031103340
1148a038223
122493933a4
1313580a427
149ad26748
15607c717a
hex3d75636c

1031103340 has 48 divisors (see below), whose sum is σ = 2302147008. Its totient is φ = 387056384.

The previous prime is 1031103289. The next prime is 1031103347. The reversal of 1031103340 is 433011301.

It is not an unprimeable number, because it can be changed into a prime (1031103347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3234 + ... + 45526.

It is an arithmetic number, because the mean of its divisors is an integer number (47961396).

Almost surely, 21031103340 is an apocalyptic number.

1031103340 is a gapful number since it is divisible by the number (10) 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 1031103340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1151073504).

1031103340 is an abundant number, since it is smaller than the sum of its proper divisors (1271043668).

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

1031103340 is a wasteful number, since it uses less digits than its factorization.

1031103340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42378 (or 42376 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1031103340 is about 32110.7978723669. The cubic root of 1031103340 is about 1010.2621088840.

Adding to 1031103340 its reverse (433011301), we get a palindrome (1464114641).

The spelling of 1031103340 in words is "one billion, thirty-one million, one hundred three thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 23 46 53 92 106 115 212 230 265 460 530 1060 1219 2438 4876 6095 12190 24380 42293 84586 169172 211465 422930 845860 972739 1945478 2241529 3890956 4483058 4863695 8966116 9727390 11207645 19454780 22415290 44830580 51555167 103110334 206220668 257775835 515551670 1031103340