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131011242146 = 2198294158823
BaseRepresentation
bin111101000000011100…
…0001110100010100010
3110112011101202200001122
41322000320032202202
54121302334222041
6140104041332242
712315403120121
oct1720070164242
9415141680048
10131011242146
115061a481344
1221483497082
13c47b549a75
1464ab901ab8
15361ba15c4b
hex1e80e0e8a2

131011242146 has 16 divisors (see below), whose sum is σ = 207109435200. Its totient is φ = 61983083088.

The previous prime is 131011242079. The next prime is 131011242209. The reversal of 131011242146 is 641242110131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2047910 + ... + 2110913.

It is an arithmetic number, because the mean of its divisors is an integer number (12944339700).

Almost surely, 2131011242146 is an apocalyptic number.

131011242146 is a deficient number, since it is larger than the sum of its proper divisors (76098193054).

131011242146 is a wasteful number, since it uses less digits than its factorization.

131011242146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4159673.

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 131011242146 its reverse (641242110131), we get a palindrome (772253352277).

The spelling of 131011242146 in words is "one hundred thirty-one billion, eleven million, two hundred forty-two thousand, one hundred forty-six".

Divisors: 1 2 19 38 829 1658 15751 31502 4158823 8317646 79017637 158035274 3447664267 6895328534 65505621073 131011242146