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1031201313 = 3844740693
BaseRepresentation
bin111101011101101…
…110001000100001
32122212101110021020
4331131232020201
54102441420223
6250154120053
734361031552
oct7535561041
92585343236
101031201313
1148a0a489a
12249420029
13135842bbc
149ad50329
15607e61e3
hex3d76e221

1031201313 has 8 divisors (see below), whose sum is σ = 1375131648. Its totient is φ = 687369264.

The previous prime is 1031201287. The next prime is 1031201333. The reversal of 1031201313 is 3131021301.

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

It is not a de Polignac number, because 1031201313 - 212 = 1031197217 is a prime.

It is a super-2 number, since 2×10312013132 = 2126752295865847938, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1031201292 and 1031201301.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4995 + ... + 45687.

It is an arithmetic number, because the mean of its divisors is an integer number (171891456).

Almost surely, 21031201313 is an apocalyptic number.

It is an amenable number.

1031201313 is a deficient number, since it is larger than the sum of its proper divisors (343930335).

1031201313 is an equidigital number, since it uses as much as digits as its factorization.

1031201313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49143.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1031201313 is about 32112.3233821535. The cubic root of 1031201313 is about 1010.2941054425.

Adding to 1031201313 its reverse (3131021301), we get a palindrome (4162222614).

The spelling of 1031201313 in words is "one billion, thirty-one million, two hundred one thousand, three hundred thirteen".

Divisors: 1 3 8447 25341 40693 122079 343733771 1031201313