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1308326831 = 710111871559
BaseRepresentation
bin100110111111011…
…0111101110101111
310101011211220000022
41031332313232233
510134412424311
6333453552355
744264410640
oct11576675657
93334756008
101308326831
11611575349
123061a56bb
1317b0920b6
14c5a8b6c7
1579cd75db
hex4dfb7baf

1308326831 has 16 divisors (see below), whose sum is σ = 1512276480. Its totient is φ = 1108672800.

The previous prime is 1308326813. The next prime is 1308326837. The reversal of 1308326831 is 1386238031.

It is a cyclic number.

It is not a de Polignac number, because 1308326831 - 214 = 1308310447 is a prime.

It is a super-2 number, since 2×13083268312 = 3423438193429005122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1308326791 and 1308326800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1308326837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 838430 + ... + 839988.

It is an arithmetic number, because the mean of its divisors is an integer number (94517280).

Almost surely, 21308326831 is an apocalyptic number.

1308326831 is a deficient number, since it is larger than the sum of its proper divisors (203949649).

1308326831 is a wasteful number, since it uses less digits than its factorization.

1308326831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2854.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 1308326831 is about 36170.8008067281. The cubic root of 1308326831 is about 1093.7181419140.

The spelling of 1308326831 in words is "one billion, three hundred eight million, three hundred twenty-six thousand, eight hundred thirty-one".

Divisors: 1 7 101 707 1187 1559 8309 10913 119887 157459 839209 1102213 1850533 12953731 186903833 1308326831