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1312124124 = 2231710959009
BaseRepresentation
bin100111000110101…
…0110110011011100
310101102222210220210
41032031112303130
510141400432444
6334111212420
744341604523
oct11615266334
93342883823
101312124124
11613729303
12307517110
1317bac160c
14c63994ba
157a2d77b9
hex4e356cdc

1312124124 has 48 divisors (see below), whose sum is σ = 3271514400. Its totient is φ = 407863296.

The previous prime is 1312124117. The next prime is 1312124129. The reversal of 1312124124 is 4214212131.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1312124124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312124129) 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 15 ways as a sum of consecutive naturals, for example, 7269 + ... + 51740.

It is an arithmetic number, because the mean of its divisors is an integer number (68156550).

Almost surely, 21312124124 is an apocalyptic number.

It is an amenable number.

1312124124 is an abundant number, since it is smaller than the sum of its proper divisors (1959390276).

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

1312124124 is a wasteful number, since it uses less digits than its factorization.

1312124124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59142 (or 59140 counting only the distinct ones).

The product of its digits is 384, while the sum is 21.

The square root of 1312124124 is about 36223.2539123696. The cubic root of 1312124124 is about 1094.7752571431.

Adding to 1312124124 its reverse (4214212131), we get a palindrome (5526336255).

The spelling of 1312124124 in words is "one billion, three hundred twelve million, one hundred twenty-four thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 109 204 218 327 436 654 1308 1853 3706 5559 7412 11118 22236 59009 118018 177027 236036 354054 708108 1003153 2006306 3009459 4012612 6018918 6431981 12037836 12863962 19295943 25727924 38591886 77183772 109343677 218687354 328031031 437374708 656062062 1312124124