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131030221324 = 221011297924989
BaseRepresentation
bin111101000001000000…
…0101000001000001100
3110112012201110220121011
41322002000220020030
54121322214040244
6140110000215004
712316023335032
oct1720200501014
9415181426534
10131030221324
115062a164712
122148990a464
13c482463652
1464b0242552
15361d514434
hex1e8202820c

131030221324 has 24 divisors (see below), whose sum is σ = 231600322800. Its totient is φ = 64858852800.

The previous prime is 131030221237. The next prime is 131030221339. The reversal of 131030221324 is 423122030131.

It is a junction number, because it is equal to n+sod(n) for n = 131030221295 and 131030221304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5231022 + ... + 5256010.

It is an arithmetic number, because the mean of its divisors is an integer number (9650013450).

Almost surely, 2131030221324 is an apocalyptic number.

It is an amenable number.

131030221324 is a deficient number, since it is larger than the sum of its proper divisors (100570101476).

131030221324 is a wasteful number, since it uses less digits than its factorization.

131030221324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38073 (or 38071 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 131030221324 its reverse (423122030131), we get a palindrome (554152251455).

The spelling of 131030221324 in words is "one hundred thirty-one billion, thirty million, two hundred twenty-one thousand, three hundred twenty-four".

Divisors: 1 2 4 101 202 404 12979 24989 25958 49978 51916 99956 1310879 2523889 2621758 5047778 5243516 10095556 324332231 648664462 1297328924 32757555331 65515110662 131030221324