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131030522045 = 561971442439
BaseRepresentation
bin111101000001000000…
…1110001100010111101
3110112012202001012002222
41322002001301202331
54121322303201140
6140110010455125
712316026026543
oct1720201614275
9415182035088
10131030522045
115062a34a645
1221489a344a5
13c48253a4a7
1464b02bdd93
15361d5735b5
hex1e820718bd

131030522045 has 16 divisors (see below), whose sum is σ = 159979224960. Its totient is φ = 102999566400.

The previous prime is 131030522041. The next prime is 131030522089. The reversal of 131030522045 is 540225030131.

It is a happy number.

It is not a de Polignac number, because 131030522045 - 22 = 131030522041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131030522041) 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, 74936 + ... + 517374.

It is an arithmetic number, because the mean of its divisors is an integer number (9998701560).

Almost surely, 2131030522045 is an apocalyptic number.

It is an amenable number.

131030522045 is a deficient number, since it is larger than the sum of its proper divisors (28948702915).

131030522045 is an equidigital number, since it uses as much as digits as its factorization.

131030522045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443476.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 131030522045 its reverse (540225030131), we get a palindrome (671255552176).

The spelling of 131030522045 in words is "one hundred thirty-one billion, thirty million, five hundred twenty-two thousand, forty-five".

Divisors: 1 5 61 305 971 4855 59231 296155 442439 2212195 26988779 134943895 429608269 2148041345 26206104409 131030522045