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1031201330 = 25103120133
BaseRepresentation
bin111101011101101…
…110001000110010
32122212101110021212
4331131232020302
54102441420310
6250154120122
734361031605
oct7535561062
92585343255
101031201330
1148a0a4905
12249420042
13135842c03
149ad5033c
15607e6205
hex3d76e232

1031201330 has 8 divisors (see below), whose sum is σ = 1856162412. Its totient is φ = 412480528.

The previous prime is 1031201287. The next prime is 1031201333. The reversal of 1031201330 is 331021301.

It can be written as a sum of positive squares in 2 ways, for example, as 984265129 + 46936201 = 31373^2 + 6851^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1031201333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51560057 + ... + 51560076.

Almost surely, 21031201330 is an apocalyptic number.

1031201330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1031201330 is a deficient number, since it is larger than the sum of its proper divisors (824961082).

1031201330 is a wasteful number, since it uses less digits than its factorization.

1031201330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103120140.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 1031201330 is about 32112.3236468494. The cubic root of 1031201330 is about 1010.2941109942.

Adding to 1031201330 its reverse (331021301), we get a palindrome (1362222631).

The spelling of 1031201330 in words is "one billion, thirty-one million, two hundred one thousand, three hundred thirty".

Divisors: 1 2 5 10 103120133 206240266 515600665 1031201330