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1313124211 = 72347971789
BaseRepresentation
bin100111001000100…
…1010111101110011
310101111212121210001
41032101022331303
510142124433321
6334144450431
744353241320
oct11621127563
93344777701
101313124211
11614251723
12307919a17
1317c081899
14c6579b47
157a433c91
hex4e44af73

1313124211 has 32 divisors (see below), whose sum is σ = 1616670720. Its totient is φ = 1042246656.

The previous prime is 1313124203. The next prime is 1313124221. The reversal of 1313124211 is 1124213131.

It is not a de Polignac number, because 1313124211 - 23 = 1313124203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1313124221) 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 31 ways as a sum of consecutive naturals, for example, 733105 + ... + 734893.

It is an arithmetic number, because the mean of its divisors is an integer number (50520960).

Almost surely, 21313124211 is an apocalyptic number.

1313124211 is a deficient number, since it is larger than the sum of its proper divisors (303546509).

1313124211 is a wasteful number, since it uses less digits than its factorization.

1313124211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1963.

The product of its digits is 144, while the sum is 19.

The square root of 1313124211 is about 36237.0557716821. The cubic root of 1313124211 is about 1095.0533285121.

Adding to 1313124211 its reverse (1124213131), we get a palindrome (2437337342).

The spelling of 1313124211 in words is "one billion, three hundred thirteen million, one hundred twenty-four thousand, two hundred eleven".

Divisors: 1 7 23 47 97 161 329 679 1081 1789 2231 4559 7567 12523 15617 31913 41147 84083 104857 173533 288029 588581 733999 1214731 1933909 3991259 8156051 13537363 27938813 57092357 187589173 1313124211