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1031214340 = 225132305093
BaseRepresentation
bin111101011101110…
…001010100000100
32122212102010010201
4331131301110010
54102442324330
6250154300244
734361114542
oct7535612404
92585363121
101031214340
1148a103662
12249427684
13135848b00
149ad54d92
15607e9eca
hex3d771504

1031214340 has 36 divisors (see below), whose sum is σ = 2344952484. Its totient is φ = 380754816.

The previous prime is 1031214337. The next prime is 1031214367. The reversal of 1031214340 is 434121301.

1031214340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 566725636 + 464488704 = 23806^2 + 21552^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 149167 + ... + 155926.

It is an arithmetic number, because the mean of its divisors is an integer number (65137569).

Almost surely, 21031214340 is an apocalyptic number.

1031214340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031214340 is an abundant number, since it is smaller than the sum of its proper divisors (1313738144).

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

1031214340 is a wasteful number, since it uses less digits than its factorization.

1031214340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305128 (or 305113 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1031214340 is about 32112.5262164159. The cubic root of 1031214340 is about 1010.2983597188.

Adding to 1031214340 its reverse (434121301), we get a palindrome (1465335641).

The spelling of 1031214340 in words is "one billion, thirty-one million, two hundred fourteen thousand, three hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 169 260 338 676 845 1690 3380 305093 610186 1220372 1525465 3050930 3966209 6101860 7932418 15864836 19831045 39662090 51560717 79324180 103121434 206242868 257803585 515607170 1031214340