Search a number
-
+
13124141431031 = 31237389948847
BaseRepresentation
bin1011111011111011001111…
…0010011011100011110111
31201110122200222111122010102
42332332303302123203313
53210011220201243111
643525051454144315
72523121313350631
oct276766362334367
951418628448112
1013124141431031
1141aaa0a768294
12157b6684b209b
137427a7b82997
143352d73b9a51
1517b5c7eed13b
hexbefb3c9b8f7

13124141431031 has 24 divisors (see below), whose sum is σ = 13963493868480. Its totient is φ = 12325737263040.

The previous prime is 13124141430971. The next prime is 13124141431061. The reversal of 13124141431031 is 13013414142131.

It is not a de Polignac number, because 13124141431031 - 234 = 13106961561847 is a prime.

It is a super-2 number, since 2×131241414310312 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13124141430985 and 13124141431003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13124141431061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13357250 + ... + 14306096.

It is an arithmetic number, because the mean of its divisors is an integer number (581812244520).

Almost surely, 213124141431031 is an apocalyptic number.

13124141431031 is a deficient number, since it is larger than the sum of its proper divisors (839352437449).

13124141431031 is an equidigital number, since it uses as much as digits as its factorization.

13124141431031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949335 (or 949304 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

Adding to 13124141431031 its reverse (13013414142131), we get a palindrome (26137555573162).

The spelling of 13124141431031 in words is "thirteen trillion, one hundred twenty-four billion, one hundred forty-one million, four hundred thirty-one thousand, thirty-one".

Divisors: 1 31 37 389 961 1147 12059 14393 35557 373829 446183 948847 13831673 29414257 35107339 369101483 911841967 1088327509 11442145973 13656754871 33738152779 354706525163 423359401001 13124141431031